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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 given substring presents in the middle of another given string. Here middle means difference between the number of characters to the left and right of the given substring not more than 1.
Next: Write a Java program to add a string with specific number of times separated by a substring.

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Java: Tips of the Day

Count the number of occurrences of a char in a String:

int count = StringUtils.countMatches("a.b.c.d", ".");

Ref: https://bit.ly/2OTy6sG