Java中为List进行逗号连接

packagecom.zyl.java;importjava.util.ArrayList;importjava.util.List;importjava.util.stream.Collectors;publicclassMain{publicstaticvoidmain(String[] args){List<String> list=newArrayList<>();
    list.add("0");
    list.add("1");
    list.add("2");
    list.add("3");
    list.add("4");
    list.add("5");
    list.add("6");
    list.add("7");
    list.add("8");
    list.add("9");System.out.println(String.join(",",list));System.out.println(list.stream().collect(Collectors.joining(",")));}}

输出

0,1,2,3,4,5,6,7,8,90,1,2,3,4,5,6,7,8,9

关键点:

String.join(",",list)
list.stream().collect(Collectors.joining(","))

转载:https://blog.csdn.net/fxtxz2/article/details/109234861?