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Java Programming Exercies

Java String Exercises: Check whether the character immediately before and after of # is same in a given string

Java String: Exercise-80 with Solution

Write a Java program to check whether the character immediately before and after of # is same in a given string.

Sample Solution:

Java Code:

import java.util.*;
public class Main
{
public boolean leftAndRightSame(String stng) 
{
  int l = stng.length();
  boolean found = true;
  for (int i = 0; i < l; i++) 
  {
    String tmpString = stng.substring(i,i+1);
    if (tmpString.equals("#") && i > 0 && i < l-1) 
	{
      if (stng.charAt(i-1) == stng.charAt(i+1))
        found = true;
      else
        found = false;
    }
  }
  return found;
}
public static void main (String[] args)
    {
      Main m= new Main();
      String str1 =  "moon#night";
      System.out.println("The given string is: "+str1);
      System.out.println("The before and after character are same: "+m.leftAndRightSame(str1));
	  }
}

Sample Output:

The given string is: moon#night
The before and after character are same: true

The given string is: bat##ball
The before and after character are same: false

The given string is: #moon#night
The before and after character are same: true

Pictorial Presentation:

Java String Exercises: Check whether the character immediately before and after of # is same in a given string

Flowchart:

Flowchart: Java String Exercises - Check whether the character immediately before and after of # is same in a given string

Java Code Editor:

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