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Java Programming Exercies

Java String Exercises: Read a string and returns after remove the # and its immediate left and right characters

Java String: Exercise-68 with Solution

Write a Java program to read a string and returns after remove the # 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:

Java String Exercises: Read a string and returns after remove the # and its immediate left and right characters

Flowchart:

Flowchart: Java String Exercises - Read a string and returns after remove the # and its immediate left and right characters

Java Code Editor:

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Previous: Write a Java program to read a string and if one or both of the first tow characters is 'x', return without those 'x',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.

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