将数组A中的内容和数组B中的内容进行交换。（数组一样大）

package arrayexchange; import java.util.Arrays; public class ArrayExchange { public static void main(String[] args) { int []a={1,2,3,4,5,6,7,8,9}; int []b={9,8,7,6,5,4,3,2,1}; int []c=new int[a.length]; c=a; a=b; b=c; System.out.println(Arrays.toString(a)); System.out.println(Arrays.toString(b)); } }