• On August 16, 2024
• By Karmehavannan
• 0 Comment
• Categories: Find elements, String
• Tags: Java language, Java programs

Java program: Find the frequency of each character in the string

Java program: Find the frequency of each character in the string

In this article, we will discuss the concept of theJava program: find the frequency of each character in the given string

In this post, we are going to learn how to find the frequency of the each character of the given string in Java programming language

Code to find the frequency of the each character in the given string

find the frequency of the each character in the string using for loop

The program allows the user to enter a String and then it finds the frequency of the each character in the given string using for loop in Java programing language

program 1

//program to count the frequency of each character of the given string
import java.util.Scanner;
public class Count_frequency{
public static void main(String args[]){
//variable declaration 
    String str=" ";
int count=0,length=0,num=0;
//vriable declaration and initialization
 Scanner scan=new Scanner(System.in); 
    //create a scanner object for input
    
System.out.println("Enter the String  ");
str=scan.nextLine();
length=str.length();

for(int i=0; i
When the above code is executed, it proces the following result

 
 

find the frequency of  the each character in the string using while loop
The program allows the user to enter a String and then it finds the frequency of the each character in the given string using while loop in Java programing language
program 2
//program to count the frequency of each character of the given string
import java.util.Scanner;
public class Count_frequency1{
public static void main(String args[]){
//variable declaration 
    String str=" ";
int count=0,length=0,num=0;
//vriable declaration and initialization
 Scanner scan=new Scanner(System.in); 
    //create a scanner object for input
    
System.out.println("Enter the String  ");
str=scan.nextLine();
length=str.length();

int i=0;
while(i
When the above code is executed, it proces the following result

 

find the frequency of  the each character in the string using do-while loop
The program allows the user to enter a String and then it finds the frequency of the each character in the given string using do- while loop in Java programing language
program 3
//program to count the frequency of each character of the given string
import java.util.Scanner;
public class Count_frequency2{
public static void main(String args[]){
//variable declaration 
    String str=" ";
int count=0,length=0,num=0;
//vriable declaration and initialization
 Scanner scan=new Scanner(System.in); 
    //create a scanner object for input
    
System.out.println("Enter the String  ");
str=scan.nextLine();
length=str.length();

int i=0;
do{
count=0;
int j=0; 
   do{
       if(str.charAt(j)==str.charAt(i))
       count++;
    j++;
   }while(j
When the above code is executed, it proces the following result

 
 
Suggested for you
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while loop in Java language
do-while loop in Java language
 
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