ArrayCopy.java

类名  ArrayCopy

类代码

import java.util.Arrays;

public class ArrayCopy {

    public static void main(String[] args) {
// TODO Auto-generated method stub
System.out.println("把一个数组的值，复制到另一个数组中");
int[] a = new int[] { 1, 99, 18, 5, 77, 81, 65 };
int[] b = new int[4];
int[] c = new int[5];

        System.out.println(Arrays.toString(a));
for (int i = 0; i < b.length; i++) {
b[i] = a[i];
}
System.out.println(Arrays.toString(b));
System.arraycopy(a, 0, c, 0, c.length);
System.out.println(Arrays.toString(c));
}
}

运行结果

把一个数组的值，复制到另一个数组中
[1, 99, 18, 5, 77, 81, 65]
[1, 99, 18, 5]
[1, 99, 18, 5, 77]