Java 数组 之 二维数组

Posted 2020-11-18 verejava

http://www.verejava.com/?id=16992693216433

public class BinaryArray
{
    public static void main(String[] args)
    {
        //二维数组定义和初始化
        int[][] arrs={
            {1,2,3},
            {4,5,6},
            {6,8,9}
        };
        //二维数组遍历输出
        for(int i=0;i<arrs.length;i++)
        {
            for(int j=0;j<arrs[i].length;j++)
            {
                System.out.print(arrs[i][j]);
            }

            System.out.println("");
        }

        //增强for循环 是jdk 5.0 以后才有的新的特性
        String[] names={"黎明","张胜","李阳"};
        for(String name:names)
        {
            System.out.print(name+",");
        }


        //定义一个课程的二维表结构
        String[][] courses={
            {"C001","英语"},
            {"C002","数学"},
            {"C003","Java编程"}
        };
        System.out.println("
---------------------");
        //输出
        for(String[] rows:courses)
        {
            for(String col:rows)
            {
                System.out.print(col+",");
            }
            System.out.println("");
        }
    }   
}

http://www.verejava.com/?id=16992693216433