Java String Exercises: Read a string and returns after removing a specified character and its immediate left and right characters

Java String: Exercise-68 with Solution

Write a Java program to read a string and returns after removing a specified character and its immediate left and right characters.

Sample Solution:

Java Code:

import java.util.*;
public class Main
{
public String excludeHash(String stng) 
{
  int len = stng.length();
  String resultString = "";
  for (int i = 0; i < len; i++) 
  {
    if (i == 0 && stng.charAt(i) != '#')
      resultString += stng.charAt(i);
    if (i > 0 && stng.charAt(i) != '#' && stng.charAt(i-1) != '#')
      resultString += stng.charAt(i);
    if (i > 0 && stng.charAt(i) == '#' && stng.charAt(i-1) != '#')
      resultString = resultString.substring(0,resultString.length()-1);
  }
  return resultString;
}
public static void main (String[] args)
    {
      Main m= new Main();
      String str1 =  "test#string";
      System.out.println("The given strings is: "+str1);
      System.out.println("The new string is: "+m.excludeHash(str1));
	  }
}

Sample Output:

The given strings is: test#string
The new string is: testring

The given strings is: test##string
The new string is: testring

The given strings is: test#the#string
The new string is: teshtring

Pictorial Presentation:

Flowchart:

Java Code Editor:

Improve this sample solution and post your code through Disqus

Previous: Write a Java program to read a string and if one or both of the first two characters is equal to specified character return without those characters otherwise return the string unchanged.
Next: Write a Java program to return the substring that is between the first and last appearance of the substring 'toast' in the given string,or return the empty string if substirng 'toast' does not exists.