Core Java

Way To Convert An ArrayList to a string:

This post helps you to when u have an requirement like you have an list of string and u have to concatenate with  some CSV(comma separated values ) or "/" or "," 

Following is the code which full fills the above requirement.

import java.util.ArrayList;

import java.util.List;

public class StringConcatination {

public static void main(String[] args) {

                    //List of Strings we want to concatenate

   List<String> list=new ArrayList<String>();

   list.add("string1");

   list.add("string2");

   

   //The string builder used to construct the string

   StringBuilder commaSepValueBuilder = new StringBuilder();

 

   //Looping through the list

   for ( int i = 0; i< list.size(); i++){

     //append the value into the builder

     commaSepValueBuilder.append(list.get(i));

      

     //if the value is not the last element of the list

     //then append the comma(,) as well

     if ( i != list.size()-1){

       commaSepValueBuilder.append(" / ");

     }

     

   }

   

   System.out.println(commaSepValueBuilder.toString());

  }

}

Final Result looks as below:

string1 / string2.