Fill Elements in a Char Array in Java

In this article, we will fill elements in a char array using Java. We will be using the Arrays.fill() method to fill it with a specific character. This method allows us to assign a single character value to all elements in the array. We will fill the array with the character 'A' and then print the array using Arrays.toString() to display its contents in a readable format.

Problem Statement

Write a Java program to fill elements in a char array ?

Input

charValue = 'A'

Output

The char array content is: [A, A, A, A, A]

Steps to fill elements in a char array

Following are the steps to fill elements in a char array ?

• First, we will import the Arrays class from java.util package.
  
• We will define a char array of size 5.
  
• We will assign the character 'A' to all elements of the array using the Arrays.fill() method.
  
• Finally, we will print the contents of the array using Arrays.toString().
  

Java program to fill elements in a char array

Below is the Java program to fill elements in a char array ?

import java.util.Arrays;
public class Demo {
   public static void main(String[] argv) throws Exception {
      char[] charArray = new char[5];
      char charValue = 'A';
      Arrays.fill(charArray, charValue);
      System.out.println("The char array content is: " + Arrays.toString(charArray));
   }
}

Output

The char array content is: [A, A, A, A, A]

Code Explanation

In the above program, we create a char array with 5 elements and use the Arrays.fill(charArray, 'A') method to fill each element with the character 'A'. This method efficiently assigns the value to all elements in the array. After filling the array, we use Arrays.toString(charArray) to print the array contents in a formatted string. The output will show that all elements of the array have been filled with the character 'A'.