java数组--------多维数组及数组存储表格数据

一、二维数组初始化和基本使用

package cn.zxg.arrays2;

/**
 * 测试二维数组
 */

public class Test2Dimension {
    public static void main(String[] args) {
        //初始二维数组
        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]);

        //静态初始化二位数组
        int[][] b={{10,20},{2,3,100,90},{8,9}};
        System.out.println(b[1][2]);
    }
}

二、数组存储表格数据

package cn.zxg.arrays2;

import java.util.Arrays;

/**
 * 测试数组存储表格数据
 */

public class TestArrayTableData {
    public static void main(String[] args) {
        Object[] emp1={1001,"张三",18,"老师",2006.6};
        Object[] emp2={1001,"李四",18,"助教",2006.6};
        Object[] emp3={1001,"王五",18,"讲师",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));

        }

    }
}