In this tutorial, we will see simple program to find frequency of Each Character in a String
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import java.util.Scanner; public class StringOperator { public static void main(String args[]) { int i; String str; int counter[] = new int[256]; Scanner in = new Scanner(System.in); System.out.print("Enter a String : "); str=in.nextLine(); for (i = 0; i < str.length(); i++) { counter[(int) str.charAt(i)]++; } // Print Frequency of characters for (i = 0; i < 256; i++) { if (counter[i] != 0) { System.out.println("The character " + (char) i + " has occurred for " + counter[i] + " times"); } } } } |
Output:
Enter a String : Java2Blog
The character B has occurred for 1 times
The character J has occurred for 1 times
The character a has occurred for 2 times
The character g has occurred for 1 times
The character l has occurred for 1 times
The character o has occurred for 1 times
The character v has occurred for 1 times
The character B has occurred for 1 times
The character J has occurred for 1 times
The character a has occurred for 2 times
The character g has occurred for 1 times
The character l has occurred for 1 times
The character o has occurred for 1 times
The character v has occurred for 1 times
That’s all about Java Program to Find Frequency of Each Character in a String.
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