Java, String.join, Arrays.asList的用法实例

package com.main;

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

public class Main {
    
    public static void main(String[] args) {
        String tableNameStr = "table1,table2,table3";
        String[] tableNameArray = tableNameStr.split(",");
        List tableNameList = Arrays.asList(tableNameArray);
        String tableNameStr1 = String.join("#",tableNameStr);
        String tableNameStr2 = String.join("#",tableNameArray);
        String tableNameStr3 = String.join("#",tableNameList);
        String tableNameStr4 = String.join(",",tableNameList);
        String tableNameStr5 = String.join("",tableNameList);
        System.out.println("");
        // write your code here
    }
}