Java中将List列表转换为字符串的三种方法

import java.util.Arrays;
import java.util.List;

public class ListToStringUsingToStringExample {

    public static void main(String args) {

    // creating a list with strings.
    List<String> list = Arrays.asList("One", "Two", "Three", "Four", "Five");

    // converting List<String> to String using toString() method
    String stringFromList = list.toString();

    // priting the string
    System.out.println("String : "+stringFromList);
    }
}

输出：
String : [One, Two, Three, Four, Five]

public class ListToStringUsingString_JoinExample {

    public static void main(String args) {

    // creating a list with strings.
    List<String> list = Arrays.asList("One", "Two", "Three", "Four", "Five");

    // converting List<String> to String using toString() method
    String stringFromList = String.join("~", list);

    // priting the string
    System.out.println("String with tilde delimiter: "+stringFromList);

    // delimiting with pipe | symbol.
    String stringPipe = String.join("|", list);

    // printing
    System.out.println("String with pipe delimiter : "+stringPipe);
    }
}

输出：
String with tilde delimiter: One~Two~Three~Four~Five
String with pipe delimiter : One|Two|Three|Four|Five

public class ListToStringUsingString_JoinExample {

    public static void main(String args) {

    // creating a list with strings.
    List<String> list = Arrays.asList("One", "Two", "Three", "Four", "Five");

    // using java 8 Collectors.joining with delimiter, prefix and suffix
    String joiningString = list.stream().collect(Collectors.joining("-", "{", "}"));

    // printing
    System.out.println("Collectors.joining string : "+joiningString);

    String joiningString3 = list.stream().collect(Collectors.joining("@", "", ""));

    // printing
    System.out.println("Collectors.joining string with @ separator : "+joiningString3);
    }
}

输出：
Collectors.joining string : {One-Two-Three-Four-Five}
Collectors.joining string with @ separator : One@Two@Three@Four@Five

public class ListToStringUsingStringUtils_JoinExample {

    public static void main(String args) {

    // creating a list with strings.
    List<String> list = Arrays.asList("One", "Two", "Three", "Four", "Five");

    // using java 8 Collectors.joining with delimiter, prefix and suffix
    String joiningString = StringUtils.join(list, "^");

    // printing
    System.out.println("StringUtils.join string with ^ delimiter : "+joiningString);

    String joiningString3 = StringUtils.join(list, "$");

    // printing
    System.out.println("StringUtils.join string with @ separator : "+joiningString3);
    }
}

输出：
StringUtils.join string with ^ delimiter : One^Two^Three^Four^Five
StringUtils.join string with @ separator : One$Two$Three$Four$Five