Array.asList()

Posted 2020-09-28 Me-Newbie

package study.stage2;
import java.util.*;


/**
 * Created by Sandy.Liu on 2017/7/19.
 */
public class AslistTest {
    public static void main(String[] args){
        int intarray[] ={10,23,34,3,23,43};//定义一个整形数组
        List intlist = Arrays.asList(intarray);//转换成列表。但是整个整形数组是作为一个对象存入到list里面的
        for(Object o: intlist){
            System.out.println(o.toString());//预期输出是一整个数组，但是实际输出的是一个引用 [[email protected]
        }
        System.out.println("*****************************");//我是分隔符

        String sarray[] = {"sandy","wendy","candy","hindey"};//定义对象类型的数组
        List<String> slist = Arrays.asList(sarray);//对象类型的数组能每一个元素都存储到列表里
        for(String s: slist){
            System.out.print(s+" ");//sandy wendy candy hindey
        }
        System.out.println();
        System.out.println("*****************************");

        Integer iarray[] = {1,2,3,1,45,65,45};//定义对象类型的数组
        List<Integer> ilist = Arrays.asList(iarray);
        for(int i: ilist){
            System.out.print(i+" ");//1 2 3 1 45 65 45 
        }
        System.out.println();

    }
}