问答题

本题将数组arrA中的元素按逆序存储在另外一个相同长度的数组arrB中。
public class java1
public static void main(String[]args)
int[]arrA=1,3,8,4,2,6,9,0,7;
int[]arrB=______;
int i=0;
int j=______;
for(i=0;i<arrA.length;i++)
arrB[j]=arrA[i];
______;
System.out.println("arrA:"+"arrB:");
for(i=0;i<arrA.length;i++)
System.out.println(arrA[i]+""+arrB[i]);

【参考答案】

第1处:new int[arrA.length]
第2处:arrA.length-1
第3处:j--......

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