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| package StringJoiner_package; | |
| import java.util.StringJoiner; | |
| public class StringJoiner_demo1 { | |
| public static void main(String[] args) { | |
| //1、创建一个对象,并指定中间的间隔符号 | |
| StringJoiner sj = new StringJoiner(","); | |
| //2、添加元素 | |
| sj.add("aaa").add("bbb").add("ccc"); | |
| //3、打印结果 | |
| System.out.println(sj); | |
| } | |
| } | |