java arraylist to string

/**
 * @author lautturi.com
 * Java example: arraylist to string in java
 */

import java.util.*;
import java.time.*;

public class Lautturi {
	public static void main(String[] args) {

		ArrayList<String> arrList = new ArrayList<>();
		arrList.add("lautturi");
		arrList.add("python");
		arrList.add("java");

		StringBuffer sb = new StringBuffer();

		for (String s : arrList) {
			sb.append(s);
			sb.append(" ");
		}
		String str = sb.toString();
		System.out.println(str);
	}
}

arraylist to string method 2

/**
 * @author lautturi.com
 * Java example: 
 */

import java.util.*;
import java.time.*;

public class Lautturi {
	public static void main(String[] args) {

		ArrayList<String> arrList = new ArrayList<>();
		arrList.add("lautturi");
		arrList.add("python");
		arrList.add("java");

		String str = "";

		for (String s : arrList)
		{
			str += s + ", ";
		}
		System.out.println(str);
	}
}

output:

lautturi, python, java,