Java学习基础-数组-二维数组

二维数组

package com.array.Array;
//二维数组
public class ArrayDemo05 {
    public static void main(String[] args) {
        //四行两列
        /**
         * 1,2      array[0]
         * 2,3      array[1]
         * 3,4      array[2]
         * 4,5      array[3]
         */
        int[][] array = {{1,2},{2,3},{3,4},{4,5}};

        printArray(array[0]);
        System.out.println();
        System.out.println(array[0][0]);
        System.out.println(array[0][1]);

    }
    //打印数组元素
    public static void printArray(int[] arrays){
        for (int i = 0; i < arrays.length; i++) {
            System.out.print(arrays[i]+" ");

        }
    }
}

package com.array.Array;

import java.util.concurrent.ForkJoinPool;

public class ArrayDemo06 {
    public static void main(String[] args) {
        int[][] array = {{1,2},{2,3},{3,4},{4,5}};

        for (int i = 0; i < array.length; i++) {
            for (int j = 0; j < array[i].length; j++) {
                System.out.println(array[i][j]);
            }
            System.out.println();

        }
    }
}