//复制数组
//注意：这种方法和值传递不同
package com.alhh.java;
public class TestArrary {
public static void main(String[] args){
int[] arr1,arr2;
arr1=new int[]{2,3,5,7,11,13,17,19};
for(int i=0;i<arr1.length;i++){
System.out.print(arr1[i]+"\t");
}
System.out.println();
arr2=new int[arr1.length];//复制arr1数组的长度
for(int i=0;i<arr2.length;i++){
if(i%2==0){//修改偶索引的值
arr2[i]=i;
}else{
arr2[i]=arr1[i];
}
}
System.out.println();
for(int i=0;i<arr2.length;i++){
System.out.print(arr2[i]+"\t");
} System.out.println();
for(int i=0;i<arr1.length;i++){
System.out.print(arr1[i]+"\t");
}
}
}/*结果为：2 3 5 7 11 13 17 19
0 3 2 7 4 13 6 19
2 3 5 7 11 13 17 19
*/
