总结:理解理解。重要啊
package com.a;
import java.util.Arrays;
public class FJKDLS {
public static void main(String[] args) {
int[] a = { 12, 3, 35, 43 };
int b[] = new int[a.length];
System.arraycopy(a, 0, b, 0, a.length);
for (int i = 0; i < b.length; i++) {
System.out.println(b[i] + " ");
}
System.out.println();
}
}