Collectors.joining() 的三种重载方法来拼接字符串

 package com.sjh.test.java8;
 
import java.util.Arrays;
import java.util.List;
import java.util.stream.Collectors;
 
public class JoniningDemo1 {
 
    public static void main(String[] args) {
        List<String> list = Arrays.asList("JayLa","LayMan","KangKang","XinYI");
        String resultStr = list.stream().collect(Collectors.joining());
        System.out.println(resultStr);
        resultStr= list.stream().collect(Collectors.joining(","));
        System.out.println(resultStr);
        resultStr= list.stream().collect(Collectors.joining("-","[","]"));
        System.out.println(resultStr);
    }
}
// 输出
// JayLaLayManKangKangXinYI
// JayLa,LayMan,KangKang,XinYI
// [JayLa-LayMan-KangKang-XinYI]

posted on 2022-06-27 17:09 (Play) 阅读(724) 评论(0) 编辑收藏举报

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	package com.sjh.test.java8;

	import java.util.Arrays;
	import java.util.List;
	import java.util.stream.Collectors;

	public class JoniningDemo1 {

	public static void main(String[] args) {
	List<String> list = Arrays.asList("JayLa","LayMan","KangKang","XinYI");
	String resultStr = list.stream().collect(Collectors.joining());
	System.out.println(resultStr);
	resultStr= list.stream().collect(Collectors.joining(","));
	System.out.println(resultStr);
	resultStr= list.stream().collect(Collectors.joining("-","[","]"));
	System.out.println(resultStr);
	}
	}
	// 输出
	// JayLaLayManKangKangXinYI
	// JayLa,LayMan,KangKang,XinYI
	// [JayLa-LayMan-KangKang-XinYI]