﻿ Java - Count the number of triples in a given string

# Java: Count the number of triples (characters appearing three times in a row) in a given string

## Java String: Exercise-86 with Solution

Write a Java program to count the number of triples (characters appearing three times in a row) in a given string.

Sample Solution:

Java Code:

``````// Define a class named Main
public class Main {

// Method to count the number of triples in the given string
public int noOfTriples(String stng) {
int l = stng.length(); // Get the length of the given string
int ctr = 0; // Initialize a counter for triples

// Loop through the string to check for triples
for (int i = 0; i < l - 2; i++) {
char tmp = stng.charAt(i); // Get the character at index 'i'

// Check if the character at index 'i' is the same as the next two characters
if (tmp == stng.charAt(i + 1) && tmp == stng.charAt(i + 2)) {
ctr++; // Increment the counter if a triple is found
}
}
return ctr; // Return the total count of triples
}

// Main method to execute the program
public static void main(String[] args) {
Main m = new Main(); // Create an instance of the Main class

String str1 = "welllcommmmeee"; // Given input string

// Display the given string and the number of triples in it
System.out.println("The given string is: " + str1);
System.out.println("The number of triples in the string is: " + m.noOfTriples(str1));
}
}
``````

Sample Output:

```The given string is: welllcommmmeee
The number of triples in the string is: 4
```

Flowchart:

Java Code Editor:

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