二维数组

 

 

package com.lin.array;

public class ArrayDemo5 {
    public static void main(String[] args) {
        /*
            array[0] 1,2
            array[1] 2,3
            array[2] 3,4
            array[4] 4,5
         */
        int[][] array={{1,2},{2,3},{3,4},{4,5}};

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

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