2020-01-04

java 二维数组的初始化和遍历
foreach

package arrays;

import java.util.Arrays;

//测试二维数组
public class Test2Array {
    public static void main(String[] args) {
        Car[] cars = new Car[3];
        int[] b = new int[3];
        int[][] a =  new int[3][];
        a[0] = new int[] {20,30};
        a[1] = new int[] {10,15,80};
        a[2] = new int[] {50,60};
        System.out.println(a[1][2]);
        
        
       //通过foreach 进行数组的遍历
        for (int[] temp : a) {
            System.out.println(Arrays.toString(temp));
        }
    }
    
    //静态初始化二维数组
    int[][] b = {
                {10,20,30},
                {20,30,40},
                {40,50,60}
                };
    
}
   class Car {
    
}