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Java Program to find the frequency of characters

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Java Program to find the frequency of characters

In this example, we will create a java program to find the frequency of each character present in the word.

Program:


public class Main
{    
     public static void main(String[] args) 
	 {    
        String str = "Welcome everyone";    
        int[] freq = new int[str.length()];    
        int i, j;    
            
        char string[] = str.toCharArray();    
            
        for(i = 0; i <str.length(); i++) 
		{    
            freq[i] = 1;    
            for(j = i+1; j <str.length(); j++) 
			{    
                if(string[i] == string[j]) 
				{    
                    freq[i]++;    
                        
                    string[j] = '0';    
                }    
            }    
        }    
            
        System.out.println("Characters and their corresponding frequencies");    
        for(i = 0; i <freq.length; i++) 
		{    
            if(string[i] != ' ' && string[i] != '0')    
            System.out.println(string[i] + "-" + freq[i]);    
        }    
    }    
}

Output
Characters and their corresponding frequencies
W-1
e-5
l-1
c-1
o-2
m-1
v-1
r-1
y-1
n-1

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