数组的拷贝操作

public class java8_4 {/** * @param args */public static void main(String[] args) {// TODO Auto-generated method stubint a[]={1,2,3,4,5,6,7,8,9,0};int b[]={9,8,7,6,5,4,3,2,1,0};System.arraycopy(a,0,b,0,4);//其中4为存放的个数int i,j;for(i=0;i<a.length;i++)System.out.print("a["+i+"]="+a[i]+"\t");System.out.print("\n");for(j=0;j<b.length;j++)System.out.print("b["+j+"]="+b[j]+"\t");}}