多くの場合、配列の元の要素をバックアップするために配列のクローンを作成する必要があります。回文番号、回文文字列、アームストロング番号などの特殊な文字列と数値があり、その特殊性を確認するには、配列のクローンを作成する必要があります。たとえば、文字列が回文であるかどうかを確認するには、まず文字列を文字配列に変換し、その文字配列を一時ファイルとして複製します。次に、char 配列の要素を逆にして、元の文字列を含む temp と比較します。

簡単に言えば、元のデータをバックアップする場合は、配列のクローンを作成する必要があります。 Java では、配列のクローンを作成する方法が次の 4 つあります。

配列要素をコピーすることによる

これは配列のクローンを作成する単純な方法です。このメソッドでは、元の配列を反復し、配列の各要素を別の配列に入れます。次の方法で要素をコピーして配列のクローンを作成します。

CloneArrayExample1.java

 // import required classes and packages if any import java.util.Scanner; // create class CloneArrayExample1 to clone an array public class CloneArrayExample1 { // main() method start public static void main(String[] args) { // declare originalArray and cloneArray variables int originalArray[]; int cloneArray[]; int size; // create Scanner class object to take input from user Scanner sc = new Scanner(System.in); System.out.println(&apos;Enter the size of the array.&apos;); size = sc.nextInt(); // initialize both the array with the given size originalArray = new int[size]; cloneArray = new int[size]; System.out.println(&apos;Enter elements of the original array:&apos;); //take input from user to fill originalArray for(int i = 0; i <size; i++) { originalarray[i]="sc.nextInt();" } close scanner class object sc.close(); use for loop to copy elements from originalarray clonearray (int i="0;" < originalarray.length; clonearray[i]="originalArray[i];" display of the original array system.out.println('elements array:'); system.out.print(originalarray[i] + ' '); cloned system.out.println('

elements clone clonearray.length; system.out.print(clonearray[i] pre> <p> <strong>Output:</strong> </p> <img src="//techcodeview.com/img/java-tutorial/18/java-array-clone.webp" alt="Java Array Clone"> <h3>Using clone() Method</h3> <p>In the above method, we have iterated the original array to make a clone of it. We have another way that takes less time to clone the given array, i.e., <strong>the clone()</strong> method of the Object class. The syntax of the clone() method is as follwos:</p> <pre> protected Object clone() throws CloneNotSupportedException </pre> <p>Let&apos;s implement the code to clone an array by using Object&apos;s clone() method:</p> <p> <strong>CloneArrayExample2.java</strong> </p> <pre> //import required classes and packages if any import java.util.Scanner; //create class CloneArrayExample2 to clone an array using clone() method public class CloneArrayExample2 { // main() method start public static void main(String[] args) { // declare originalArray and cloneArray variables int originalArray[]; int cloneArray[]; int size; // create Scanner class object to take input from user Scanner sc = new Scanner(System.in); System.out.println(&apos;Enter the size of the array.&apos;); size = sc.nextInt(); // initialize both the array with the given size originalArray = new int[size]; cloneArray = new int[size]; System.out.println(&apos;Enter elements of the original array:&apos;); //take input from user to fill originalArray for(int i = 0; i <size; i++) { originalarray[i]="sc.nextInt();" } close scanner class object sc.close(); use clone() method of to clone originalarray clonearray="originalArray.clone();" display elements the original array system.out.println('elements array:'); for (int i="0;" < originalarray.length; system.out.print(originalarray[i] + ' '); cloned system.out.println('

elements clonearray.length; system.out.print(clonearray[i] pre> <p> <strong>Output:</strong> </p> <img src="//techcodeview.com/img/java-tutorial/18/java-array-clone-2.webp" alt="Java Array Clone"> <h3>Using arraycopy() Method</h3> <p>Just like the clone() method, we can also use the arraycopy() method of the System class available in the <strong>java.lang</strong> package. The arraycopy() method has the following syntax:</p> <pre> public static void arraycopy(Object src, int srcPos, Object dest, int destPos, int length) </pre> <p>Here, <strong>src</strong> defines the source array, <strong>srcPos</strong> defines the index from where copying should be started, <strong>dest</strong> defines the array in which elements will be copied, <strong>destPos</strong> defines the index from which the copied elements are placed in the clone array, and <strong>length</strong> is the size of the subarray to be copied.</p> <p>Let&apos;s implement the code to clone an array by using the System.arraycopy() method:</p> <p> <strong>CloneArrayExample3.java</strong> </p> <pre> //import required classes and packages if any import java.util.Scanner; //create class CloneArrayExample3 to clone an array using System.arraycopy() method public class CloneArrayExample3 { // main() method start public static void main(String[] args) { // declare originalArray and cloneArray variables int originalArray[]; int cloneArray[]; int size; // create Scanner class object to take input from user Scanner sc = new Scanner(System.in); System.out.println(&apos;Enter the size of the array.&apos;); size = sc.nextInt(); // initialize both the array with the given size originalArray = new int[size]; cloneArray = new int[size]; System.out.println(&apos;Enter elements of the original array:&apos;); //take input from user to fill originalArray for(int i = 0; i <size; i++) { originalarray[i]="sc.nextInt();" } close scanner class object sc.close(); use system.arraycopy() method to clone originalarray system.arraycopy(originalarray, 0, clonearray, size); display elements of the original array system.out.println('elements array:'); for (int i="0;" < originalarray.length; system.out.print(originalarray[i] + ' '); system.out.println('

elements clonearray.length; system.out.print(clonearray[i] pre> <p> <strong>Output:</strong> </p> <img src="//techcodeview.com/img/java-tutorial/18/java-array-clone-3.webp" alt="Java Array Clone"> <h3>Using copyOf() Method</h3> <p>Just like clone() and arraycopy() methods, we can also use copyOf() method of the Arrays class available in the <strong>java.util</strong> package. The copyOf () method has the following syntax:</p> <pre> public static int[] copyOf(int[] arr, int len) </pre> <p>Here, <strong>arr</strong> defines the original array, and <strong>len</strong> is the length of the array to get copied.</p> <p>Let&apos;s implement the code to clone an array by using arraycopy() method of Arrays class:</p> <p> <strong>CloneArrayExample4.java</strong> </p> <pre> //import required classes and packages if any import java.util.Scanner; import java.util.Arrays; //create class CloneArrayExample4 to clone an array using arraycopy() method of Arrays class public class CloneArrayExample4 { // main() method start public static void main(String[] args) { // declare originalArray and cloneArray variables int originalArray[]; int cloneArray[]; int size; // create Scanner class object to take input from user Scanner sc = new Scanner(System.in); System.out.println(&apos;Enter the size of the array.&apos;); size = sc.nextInt(); // initialize both the array with the given size originalArray = new int[size]; cloneArray = new int[size]; System.out.println(&apos;Enter elements of the original array:&apos;); //take input from user to fill originalArray for(int i = 0; i <size; i++) { originalarray[i]="sc.nextInt();" } close scanner class object sc.close(); use copyof() method to clone originalarray clonearray="Arrays.copyOf(originalArray," size); display elements of the original array system.out.println('elements array:'); for (int i="0;" < originalarray.length; system.out.print(originalarray[i] + ' '); system.out.println('

elements clonearray.length; system.out.print(clonearray[i] pre> <p> <strong>Output:</strong> </p> <img src="//techcodeview.com/img/java-tutorial/18/java-array-clone-4.webp" alt="Java Array Clone"> <h3>Using copyOfRange() Method</h3> <p>Lust like copyOf() method, Arrays class provide copyOfRange() method to clone an array. The copyOfRange() method is used to copy the elements of the specified range of the original array into clone array. The syntax of the copyOfRange() method is as follows:</p> <pre> public static int[] copyOfRange(int[] original, int from, int to) </pre> <p>Here, <strong>the original</strong> defines the original array, <strong>from</strong> defines initial index and <strong>to</strong> defines the final index of the element.</p> <p>Let&apos;s implement the code to clone an array by using arraycopyRange() method of Arrays class:</p> <p> <strong>CloneArrayExample5.java</strong> </p> <pre> //import required classes and packages if any package javaTpoint.JavaExample; import java.util.Scanner; import java.util.Arrays; //create class CloneArrayExample5 to clone an array using copyOfRange() method of Arrays class public class CloneArrayExample5 { // main() method start public static void main(String[] args) { // declare originalArray and cloneArray variables int originalArray[]; int cloneArray[]; int size; // create Scanner class object to take input from user Scanner sc = new Scanner(System.in); System.out.println(&apos;Enter the size of the array.&apos;); size = sc.nextInt(); // initialize both the array with the given size originalArray = new int[size]; cloneArray = new int[size]; System.out.println(&apos;Enter elements of the original array:&apos;); //take input from user to fill originalArray for(int i = 0; i <size; i++) { originalarray[i]="sc.nextInt();" } close scanner class object sc.close(); use copyofrange() method to clone originalarray clonearray="Arrays.copyOfRange(originalArray," 0, size); display elements of the original array system.out.println('elements array:'); for (int i="0;" < originalarray.length; system.out.print(originalarray[i] + ' '); system.out.println('

elements clonearray.length; system.out.print(clonearray[i] pre> <p> <strong>Output:</strong> </p> <img src="//techcodeview.com/img/java-tutorial/18/java-array-clone-5.webp" alt="Java Array Clone"> <p>All the above-discussed ways are used for cloning an array. We recommend you to use the clone() method of the Object class to clone the array. </p> <hr></size;></pre></size;></pre></size;></pre></size;></pre></size;>

Object の clone() メソッドを使用して配列のクローンを作成するコードを実装しましょう。

CloneArrayExample2.java

メモリの交換

 //import required classes and packages if any import java.util.Scanner; //create class CloneArrayExample2 to clone an array using clone() method public class CloneArrayExample2 { // main() method start public static void main(String[] args) { // declare originalArray and cloneArray variables int originalArray[]; int cloneArray[]; int size; // create Scanner class object to take input from user Scanner sc = new Scanner(System.in); System.out.println(&apos;Enter the size of the array.&apos;); size = sc.nextInt(); // initialize both the array with the given size originalArray = new int[size]; cloneArray = new int[size]; System.out.println(&apos;Enter elements of the original array:&apos;); //take input from user to fill originalArray for(int i = 0; i <size; i++) { originalarray[i]="sc.nextInt();" } close scanner class object sc.close(); use clone() method of to clone originalarray clonearray="originalArray.clone();" display elements the original array system.out.println(\'elements array:\'); for (int i="0;" < originalarray.length; system.out.print(originalarray[i] + \' \'); cloned system.out.println(\'

elements clonearray.length; system.out.print(clonearray[i] pre> <p> <strong>Output:</strong> </p> <img src="//techcodeview.com/img/java-tutorial/18/java-array-clone-2.webp" alt="Java Array Clone"> <h3>Using arraycopy() Method</h3> <p>Just like the clone() method, we can also use the arraycopy() method of the System class available in the <strong>java.lang</strong> package. The arraycopy() method has the following syntax:</p> <pre> public static void arraycopy(Object src, int srcPos, Object dest, int destPos, int length) </pre> <p>Here, <strong>src</strong> defines the source array, <strong>srcPos</strong> defines the index from where copying should be started, <strong>dest</strong> defines the array in which elements will be copied, <strong>destPos</strong> defines the index from which the copied elements are placed in the clone array, and <strong>length</strong> is the size of the subarray to be copied.</p> <p>Let&apos;s implement the code to clone an array by using the System.arraycopy() method:</p> <p> <strong>CloneArrayExample3.java</strong> </p> <pre> //import required classes and packages if any import java.util.Scanner; //create class CloneArrayExample3 to clone an array using System.arraycopy() method public class CloneArrayExample3 { // main() method start public static void main(String[] args) { // declare originalArray and cloneArray variables int originalArray[]; int cloneArray[]; int size; // create Scanner class object to take input from user Scanner sc = new Scanner(System.in); System.out.println(&apos;Enter the size of the array.&apos;); size = sc.nextInt(); // initialize both the array with the given size originalArray = new int[size]; cloneArray = new int[size]; System.out.println(&apos;Enter elements of the original array:&apos;); //take input from user to fill originalArray for(int i = 0; i <size; i++) { originalarray[i]="sc.nextInt();" } close scanner class object sc.close(); use system.arraycopy() method to clone originalarray system.arraycopy(originalarray, 0, clonearray, size); display elements of the original array system.out.println(\'elements array:\'); for (int i="0;" < originalarray.length; system.out.print(originalarray[i] + \' \'); system.out.println(\'

elements clonearray.length; system.out.print(clonearray[i] pre> <p> <strong>Output:</strong> </p> <img src="//techcodeview.com/img/java-tutorial/18/java-array-clone-3.webp" alt="Java Array Clone"> <h3>Using copyOf() Method</h3> <p>Just like clone() and arraycopy() methods, we can also use copyOf() method of the Arrays class available in the <strong>java.util</strong> package. The copyOf () method has the following syntax:</p> <pre> public static int[] copyOf(int[] arr, int len) </pre> <p>Here, <strong>arr</strong> defines the original array, and <strong>len</strong> is the length of the array to get copied.</p> <p>Let&apos;s implement the code to clone an array by using arraycopy() method of Arrays class:</p> <p> <strong>CloneArrayExample4.java</strong> </p> <pre> //import required classes and packages if any import java.util.Scanner; import java.util.Arrays; //create class CloneArrayExample4 to clone an array using arraycopy() method of Arrays class public class CloneArrayExample4 { // main() method start public static void main(String[] args) { // declare originalArray and cloneArray variables int originalArray[]; int cloneArray[]; int size; // create Scanner class object to take input from user Scanner sc = new Scanner(System.in); System.out.println(&apos;Enter the size of the array.&apos;); size = sc.nextInt(); // initialize both the array with the given size originalArray = new int[size]; cloneArray = new int[size]; System.out.println(&apos;Enter elements of the original array:&apos;); //take input from user to fill originalArray for(int i = 0; i <size; i++) { originalarray[i]="sc.nextInt();" } close scanner class object sc.close(); use copyof() method to clone originalarray clonearray="Arrays.copyOf(originalArray," size); display elements of the original array system.out.println(\'elements array:\'); for (int i="0;" < originalarray.length; system.out.print(originalarray[i] + \' \'); system.out.println(\'

elements clonearray.length; system.out.print(clonearray[i] pre> <p> <strong>Output:</strong> </p> <img src="//techcodeview.com/img/java-tutorial/18/java-array-clone-4.webp" alt="Java Array Clone"> <h3>Using copyOfRange() Method</h3> <p>Lust like copyOf() method, Arrays class provide copyOfRange() method to clone an array. The copyOfRange() method is used to copy the elements of the specified range of the original array into clone array. The syntax of the copyOfRange() method is as follows:</p> <pre> public static int[] copyOfRange(int[] original, int from, int to) </pre> <p>Here, <strong>the original</strong> defines the original array, <strong>from</strong> defines initial index and <strong>to</strong> defines the final index of the element.</p> <p>Let&apos;s implement the code to clone an array by using arraycopyRange() method of Arrays class:</p> <p> <strong>CloneArrayExample5.java</strong> </p> <pre> //import required classes and packages if any package javaTpoint.JavaExample; import java.util.Scanner; import java.util.Arrays; //create class CloneArrayExample5 to clone an array using copyOfRange() method of Arrays class public class CloneArrayExample5 { // main() method start public static void main(String[] args) { // declare originalArray and cloneArray variables int originalArray[]; int cloneArray[]; int size; // create Scanner class object to take input from user Scanner sc = new Scanner(System.in); System.out.println(&apos;Enter the size of the array.&apos;); size = sc.nextInt(); // initialize both the array with the given size originalArray = new int[size]; cloneArray = new int[size]; System.out.println(&apos;Enter elements of the original array:&apos;); //take input from user to fill originalArray for(int i = 0; i <size; i++) { originalarray[i]="sc.nextInt();" } close scanner class object sc.close(); use copyofrange() method to clone originalarray clonearray="Arrays.copyOfRange(originalArray," 0, size); display elements of the original array system.out.println(\'elements array:\'); for (int i="0;" < originalarray.length; system.out.print(originalarray[i] + \' \'); system.out.println(\'

elements clonearray.length; system.out.print(clonearray[i] pre> <p> <strong>Output:</strong> </p> <img src="//techcodeview.com/img/java-tutorial/18/java-array-clone-5.webp" alt="Java Array Clone"> <p>All the above-discussed ways are used for cloning an array. We recommend you to use the clone() method of the Object class to clone the array. </p> <hr></size;></pre></size;></pre></size;></pre></size;>

ここ、 送信元 ソース配列を定義します。 ソース位置 コピーを開始するインデックスを定義します。 始める 要素がコピーされる配列を定義します。 宛先位置 コピーされた要素がクローン配列に配置されるインデックスを定義します。 長さ コピーされる部分配列のサイズです。

System.arraycopy() メソッドを使用して配列のクローンを作成するコードを実装しましょう。

CloneArrayExample3.java

 //import required classes and packages if any import java.util.Scanner; //create class CloneArrayExample3 to clone an array using System.arraycopy() method public class CloneArrayExample3 { // main() method start public static void main(String[] args) { // declare originalArray and cloneArray variables int originalArray[]; int cloneArray[]; int size; // create Scanner class object to take input from user Scanner sc = new Scanner(System.in); System.out.println(&apos;Enter the size of the array.&apos;); size = sc.nextInt(); // initialize both the array with the given size originalArray = new int[size]; cloneArray = new int[size]; System.out.println(&apos;Enter elements of the original array:&apos;); //take input from user to fill originalArray for(int i = 0; i <size; i++) { originalarray[i]="sc.nextInt();" } close scanner class object sc.close(); use system.arraycopy() method to clone originalarray system.arraycopy(originalarray, 0, clonearray, size); display elements of the original array system.out.println(\'elements array:\'); for (int i="0;" < originalarray.length; system.out.print(originalarray[i] + \' \'); system.out.println(\'

elements clonearray.length; system.out.print(clonearray[i] pre> <p> <strong>Output:</strong> </p> <img src="//techcodeview.com/img/java-tutorial/18/java-array-clone-3.webp" alt="Java Array Clone"> <h3>Using copyOf() Method</h3> <p>Just like clone() and arraycopy() methods, we can also use copyOf() method of the Arrays class available in the <strong>java.util</strong> package. The copyOf () method has the following syntax:</p> <pre> public static int[] copyOf(int[] arr, int len) </pre> <p>Here, <strong>arr</strong> defines the original array, and <strong>len</strong> is the length of the array to get copied.</p> <p>Let&apos;s implement the code to clone an array by using arraycopy() method of Arrays class:</p> <p> <strong>CloneArrayExample4.java</strong> </p> <pre> //import required classes and packages if any import java.util.Scanner; import java.util.Arrays; //create class CloneArrayExample4 to clone an array using arraycopy() method of Arrays class public class CloneArrayExample4 { // main() method start public static void main(String[] args) { // declare originalArray and cloneArray variables int originalArray[]; int cloneArray[]; int size; // create Scanner class object to take input from user Scanner sc = new Scanner(System.in); System.out.println(&apos;Enter the size of the array.&apos;); size = sc.nextInt(); // initialize both the array with the given size originalArray = new int[size]; cloneArray = new int[size]; System.out.println(&apos;Enter elements of the original array:&apos;); //take input from user to fill originalArray for(int i = 0; i <size; i++) { originalarray[i]="sc.nextInt();" } close scanner class object sc.close(); use copyof() method to clone originalarray clonearray="Arrays.copyOf(originalArray," size); display elements of the original array system.out.println(\'elements array:\'); for (int i="0;" < originalarray.length; system.out.print(originalarray[i] + \' \'); system.out.println(\'

elements clonearray.length; system.out.print(clonearray[i] pre> <p> <strong>Output:</strong> </p> <img src="//techcodeview.com/img/java-tutorial/18/java-array-clone-4.webp" alt="Java Array Clone"> <h3>Using copyOfRange() Method</h3> <p>Lust like copyOf() method, Arrays class provide copyOfRange() method to clone an array. The copyOfRange() method is used to copy the elements of the specified range of the original array into clone array. The syntax of the copyOfRange() method is as follows:</p> <pre> public static int[] copyOfRange(int[] original, int from, int to) </pre> <p>Here, <strong>the original</strong> defines the original array, <strong>from</strong> defines initial index and <strong>to</strong> defines the final index of the element.</p> <p>Let&apos;s implement the code to clone an array by using arraycopyRange() method of Arrays class:</p> <p> <strong>CloneArrayExample5.java</strong> </p> <pre> //import required classes and packages if any package javaTpoint.JavaExample; import java.util.Scanner; import java.util.Arrays; //create class CloneArrayExample5 to clone an array using copyOfRange() method of Arrays class public class CloneArrayExample5 { // main() method start public static void main(String[] args) { // declare originalArray and cloneArray variables int originalArray[]; int cloneArray[]; int size; // create Scanner class object to take input from user Scanner sc = new Scanner(System.in); System.out.println(&apos;Enter the size of the array.&apos;); size = sc.nextInt(); // initialize both the array with the given size originalArray = new int[size]; cloneArray = new int[size]; System.out.println(&apos;Enter elements of the original array:&apos;); //take input from user to fill originalArray for(int i = 0; i <size; i++) { originalarray[i]="sc.nextInt();" } close scanner class object sc.close(); use copyofrange() method to clone originalarray clonearray="Arrays.copyOfRange(originalArray," 0, size); display elements of the original array system.out.println(\'elements array:\'); for (int i="0;" < originalarray.length; system.out.print(originalarray[i] + \' \'); system.out.println(\'

elements clonearray.length; system.out.print(clonearray[i] pre> <p> <strong>Output:</strong> </p> <img src="//techcodeview.com/img/java-tutorial/18/java-array-clone-5.webp" alt="Java Array Clone"> <p>All the above-discussed ways are used for cloning an array. We recommend you to use the clone() method of the Object class to clone the array. </p> <hr></size;></pre></size;></pre></size;>

ここ、 到着しました 元の配列を定義し、 のみ コピーされる配列の長さです。

Arrays クラスの arraycopy() メソッドを使用して、配列のクローンを作成するコードを実装しましょう。

CloneArrayExample4.java

 //import required classes and packages if any import java.util.Scanner; import java.util.Arrays; //create class CloneArrayExample4 to clone an array using arraycopy() method of Arrays class public class CloneArrayExample4 { // main() method start public static void main(String[] args) { // declare originalArray and cloneArray variables int originalArray[]; int cloneArray[]; int size; // create Scanner class object to take input from user Scanner sc = new Scanner(System.in); System.out.println(&apos;Enter the size of the array.&apos;); size = sc.nextInt(); // initialize both the array with the given size originalArray = new int[size]; cloneArray = new int[size]; System.out.println(&apos;Enter elements of the original array:&apos;); //take input from user to fill originalArray for(int i = 0; i <size; i++) { originalarray[i]="sc.nextInt();" } close scanner class object sc.close(); use copyof() method to clone originalarray clonearray="Arrays.copyOf(originalArray," size); display elements of the original array system.out.println(\'elements array:\'); for (int i="0;" < originalarray.length; system.out.print(originalarray[i] + \' \'); system.out.println(\'

elements clonearray.length; system.out.print(clonearray[i] pre> <p> <strong>Output:</strong> </p> <img src="//techcodeview.com/img/java-tutorial/18/java-array-clone-4.webp" alt="Java Array Clone"> <h3>Using copyOfRange() Method</h3> <p>Lust like copyOf() method, Arrays class provide copyOfRange() method to clone an array. The copyOfRange() method is used to copy the elements of the specified range of the original array into clone array. The syntax of the copyOfRange() method is as follows:</p> <pre> public static int[] copyOfRange(int[] original, int from, int to) </pre> <p>Here, <strong>the original</strong> defines the original array, <strong>from</strong> defines initial index and <strong>to</strong> defines the final index of the element.</p> <p>Let&apos;s implement the code to clone an array by using arraycopyRange() method of Arrays class:</p> <p> <strong>CloneArrayExample5.java</strong> </p> <pre> //import required classes and packages if any package javaTpoint.JavaExample; import java.util.Scanner; import java.util.Arrays; //create class CloneArrayExample5 to clone an array using copyOfRange() method of Arrays class public class CloneArrayExample5 { // main() method start public static void main(String[] args) { // declare originalArray and cloneArray variables int originalArray[]; int cloneArray[]; int size; // create Scanner class object to take input from user Scanner sc = new Scanner(System.in); System.out.println(&apos;Enter the size of the array.&apos;); size = sc.nextInt(); // initialize both the array with the given size originalArray = new int[size]; cloneArray = new int[size]; System.out.println(&apos;Enter elements of the original array:&apos;); //take input from user to fill originalArray for(int i = 0; i <size; i++) { originalarray[i]="sc.nextInt();" } close scanner class object sc.close(); use copyofrange() method to clone originalarray clonearray="Arrays.copyOfRange(originalArray," 0, size); display elements of the original array system.out.println(\'elements array:\'); for (int i="0;" < originalarray.length; system.out.print(originalarray[i] + \' \'); system.out.println(\'

elements clonearray.length; system.out.print(clonearray[i] pre> <p> <strong>Output:</strong> </p> <img src="//techcodeview.com/img/java-tutorial/18/java-array-clone-5.webp" alt="Java Array Clone"> <p>All the above-discussed ways are used for cloning an array. We recommend you to use the clone() method of the Object class to clone the array. </p> <hr></size;></pre></size;>

ここ、 オリジナル 元の配列を定義します。 から 初期インデックスを定義し、 に 要素の最終インデックスを定義します。

Arrays クラスの arraycopyRange() メソッドを使用して、配列のクローンを作成するコードを実装しましょう。

sdlc

CloneArrayExample5.java

 //import required classes and packages if any package javaTpoint.JavaExample; import java.util.Scanner; import java.util.Arrays; //create class CloneArrayExample5 to clone an array using copyOfRange() method of Arrays class public class CloneArrayExample5 { // main() method start public static void main(String[] args) { // declare originalArray and cloneArray variables int originalArray[]; int cloneArray[]; int size; // create Scanner class object to take input from user Scanner sc = new Scanner(System.in); System.out.println(&apos;Enter the size of the array.&apos;); size = sc.nextInt(); // initialize both the array with the given size originalArray = new int[size]; cloneArray = new int[size]; System.out.println(&apos;Enter elements of the original array:&apos;); //take input from user to fill originalArray for(int i = 0; i <size; i++) { originalarray[i]="sc.nextInt();" } close scanner class object sc.close(); use copyofrange() method to clone originalarray clonearray="Arrays.copyOfRange(originalArray," 0, size); display elements of the original array system.out.println(\'elements array:\'); for (int i="0;" < originalarray.length; system.out.print(originalarray[i] + \' \'); system.out.println(\'

elements clonearray.length; system.out.print(clonearray[i] pre> <p> <strong>Output:</strong> </p> <img src="//techcodeview.com/img/java-tutorial/18/java-array-clone-5.webp" alt="Java Array Clone"> <p>All the above-discussed ways are used for cloning an array. We recommend you to use the clone() method of the Object class to clone the array. </p> <hr></size;>