java數組--------多維數組及數組存儲表格數據

一、二維數組初始化和基本使用

package cn.zxg.arrays2;

/**
 * 測試二維數組
 */

public class Test2Dimension {
    public static void main(String[] args) {
        //初始二維數組
        int[][] a=new int[3][];
        a[0]=new int[]{20,30};
        a[1]=new int[]{10,15,100};
        a[2]=new int[]{80,90};
        System.out.println(a[1][2]);

        //靜態初始化二位數組
        int[][] b={{10,20},{2,3,100,90},{8,9}};
        System.out.println(b[1][2]);
    }
}

二、數組存儲表格數據

package cn.zxg.arrays2;

import java.util.Arrays;

/**
 * 測試數組存儲表格數據
 */

public class TestArrayTableData {
    public static void main(String[] args) {
        Object[] emp1={1001,"張三",18,"老師",2006.6};
        Object[] emp2={1001,"李四",18,"助教",2006.6};
        Object[] emp3={1001,"王五",18,"講師",2006.6};
        Object[][] emps=new Object[3][];
        emps[0]=emp1;
        emps[1]=emp2;
        emps[2]=emp3;
        for (Object[] tmp:emps
             ) {
            System.out.println(Arrays.toString(tmp));

        }

    }
}