2020-01-04

java 数组初始化的三种方式
15:42

package arrays;
//数组的初始化
public class Test02 {
    public static void main(String[] args) {
        //静态初始化
        int[] a = {2,4,6,5};
        User[] b = {
                    new User(1001,"hello1"),
                    new User(1002,"hello2"),
                    new User(1003,"hello3")
                    };
        //默认初始化
        int[] c = new int[3];
        
        //动态初始化
        int[] a1 = new int[2];//先分配空间
        a1[0] = 1;//赋值
    }
}