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Java Programming Exercies

Java String Exercises: Count how many times the substring 'life' present at anywhere in a given string

Java String: Exercise-76 with Solution

Write a Java program to count how many times the substring 'life' present at anywhere in a given string. Counting can also happen for the substring 'li?e',any character instead of 'f'.

Sample Solution:

Java Code:

import java.util.*;
public class Main
{
public int substringCounting(String stng) 
{
  int l = stng.length();
  int ctr = 0;
  String firsttwo = "li";
  String lastone = "e";
  if (l < 4)
    return 0;
  for (int i = 0; i < l - 3; i++) 
  {
    if (firsttwo.compareTo(stng.substring(i,i+2)) == 0 && lastone.compareTo(stng.substring(i+3, i+4)) == 0)
      ctr++;
  }
  return ctr;
}
public static void main (String[] args)
    {
      Main m= new Main();
      String str1 =  "liveonwildlife";
      System.out.println("The given string is: "+str1);
      System.out.println("The substring life or li?e appear number of times: "+m.substringCounting(str1));
	  }
}

Sample Output:

The given string is: liveonwildlife
The substring life or li?e appear number of times: 2

Pictorial Presentation:

Java String Exercises: Count how many times the substring 'life' present at anywhere in a given string

Flowchart:

Flowchart: Java String Exercises - Count how many times the substring 'life' present at anywhere in a given string

Java Code Editor:

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Previous: Write a Java program to check whether a string 'abc' in the middle of a given string. Here middle means the number of character to the left and right of the substring 'abc' must differ by at most one.
Next: Write a Java program to add a string with specific number of times seperated by a substring.

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