How to Print Arraylist Without Brackets Java

How to Print Arraylist Without Brackets Java | In this case, we print the array list without brackets, usually when we use ArrayList the elements are printed within the brackets. To do this we can use replace method which replaces the brackets by space. Now see some below examples to get to the know the problem clearly,

1) ArrayList = [1,2,3,4,5]
Result = 1, 2, 3, 4, 5

2) ArrayList = [“abc”, “bcf”, “fgf”]
Result = abc, bcf, fgf

3) Arraylist = [123478, 145678, 2344, 12345]
Result = 123478, 145678, 2344, 12345

4) ArrayList = [1.44, 3.55, 2.33]
Result = 1.44, 3.55, 2.33

We will demonstrate this problem by using different data types.

How To Print Arraylist Without Brackets Java – ArrayList of Numbers

import java.util.ArrayList;

public class Main {
   public static void main(String args[]) {
      ArrayList<Integer> list = new ArrayList<>();
      list.add(4);
      list.add(5);
      list.add(434);
      list.add(6);

      System.out.println(list.toString()
                         .replace("[", "")
                         .replace("]", ""));
   }
}

Output:

4, 5, 434, 6

We have created a list of integer values and added some elements to that list. After that, we converted the ArrayList to a string. It gives result with brackets like [4, 5, 434, 6].

From this we want to remove square brackets ” [ ” and ” ] “. For this purpose, we used replace() method of the Java string class. If we pass an empty string (“”) as the second parameter to the replace() method then it removes the first parameter from the string. Let us see some more examples to learn how to print ArrayList without brackets Java.

Print Arraylist Without Brackets Java – ArrayList of String

import java.util.ArrayList;

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

      ArrayList<String> list = new ArrayList<>();
      list.add("Java");
      list.add("Programming");
      list.add("Language");

      System.out.println(list.toString()
                .replace("[", "")
                .replace("]", ""));
   }
}

Output:-

Java, Programming, Language

Print Arraylist Without Brackets Java – ArrayList of Double

import java.util.ArrayList;

class Main {
   public static void main(String args[]) {
      ArrayList<Double> list = new ArrayList<>();
      list.add(3.44);
      list.add(4.567);
      list.add(78.236);

      System.out.println(list.toString()
                         .replace("[", "")
                         .replace("]", ""));
   }
}

Output:

3.44, 4.567, 78.236

Print ArrayList Java Without brackets – ArrayList of Characters

import java.util.ArrayList;

public class Main {
   public static void main(String args[]) {
      ArrayList<Character> array = new ArrayList<>();
      array.add('b');
      array.add('f');
      array.add('f');
      array.add('d');
      array.add('s');
      System.out.println(array.toString()
                         .replace("[", "")
                         .replace("]", ""));
   }
}

Output:

b, f, f, d, s

Also see:- Java Collection Framework Overview

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