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Java Program to copy all elements of one array into another array
You can use a loop to copy all the elements of one array into another array in Java. Here's an example of how you could do it:
You also can use System.arraycopy() method to achieve the same thing. Here is an example :
public class ArrayCopyExample {
public static void main(String[] args) {
int[] array1 = {1, 2, 3, 4, 5};
int[] array2 = new int[array1.length];
// copy all elements of array1 to array2
for (int i = 0; i < array1.length; i++) {
array2[i] = array1[i];
}
// print out the contents of array2
for (int i : array2) {
System.out.print(i + " ");
}
}
}
In this example, array1 is an integer array containing the values {1, 2, 3, 4, 5}. array2 is a new integer array with the same length as array1. The first loop copies all elements of array1 to array2, and the second loop prints out the contents of array2.
You also can use System.arraycopy() method to achieve the same thing. Here is an example :
public class ArrayCopyExample {
public static void main(String[] args) {
int[] array1 = {1, 2, 3, 4, 5};
int[] array2 = new int[array1.length];
// copy all elements of array1 to array2
System.arraycopy(array1, 0, array2, 0, array1.length);
// print out the contents of array2
for (int i : array2) {
System.out.print(i + " ");
}
}
}
It will also copy the same content of array1 to array2. This function is more efficient than using a loop as it is optimized in C, so it runs faster and is more memory efficient.
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