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import java.util.Arrays;
/**
*
* @date 30/01/2013
*/
public class Test {
public static void main(String[] args) {
// 1 常量池
String[] str={"a","b","c"};
System.out.println(str[0] == "a");
System.out.println(str[0] == str[0].intern());
// 2 引用
int[][] i = new int[][]{{1,2},{3,4,5},{6}};
System.out.println(Arrays.toString(i));
for(int[] row : i)
System.out.println(Arrays.toString(row));
System.out.println("\n---\n");
i[0] = new int[]{7, 8, 9};
System.out.println(Arrays.toString(i));
for(int[] row : i)
System.out.println(Arrays.toString(row));
}
}
/*
run:
true
true
[[I@4830c221, [I@7919298d, [I@62f72617]
[1, 2]
[3, 4, 5]
[6]
---
[[I@4fe5e2c3, [I@7919298d, [I@62f72617]
[7, 8, 9]
[3, 4, 5]
[6]
BUILD SUCCESSFUL (total time: 0 seconds)
*/