package mandi;

import java.util.Scanner;

import org.testng.Assert;

import org.testng.annotations.Test;

public class StringProb {

@Test

public void positiveRemoveCharacterByIteratingString() {

String newString = removeCharacterByIteratingString("How are you", 'o');

Assert.assertEquals(newString,"Hw are yu");

}

@Test

public void positiveRemoveCharacterByStringMethod() {

//throw new RuntimeException("Test not implemented");

String newString = removeCharacterByStringMethod("How are you", 'o');

Assert.assertEquals(newString,"Hw are yu");

}

@Test

public void negativeRemoveCharacterByIteratingString() {

String newString = removeCharacterByIteratingString("How are you", 'l');

Assert.assertEquals(newString,"How are you");

}

@Test

public void negativeRemoveCharacterByStringMethod() {

//throw new RuntimeException("Test not implemented");

String newString = removeCharacterByStringMethod("How are you", 'l');

Assert.assertEquals(newString,"How are you");

}

public static void main(String args[])

{

Scanner sc = new Scanner(System.in);

System.out.println("enter the string");

String oldString=sc.nextLine();

System.out.println("enter the character to be removed");

char ch = sc.next().charAt(0);

StringProb.removeCharacterByIteratingString(oldString, ch);

StringProb.removeCharacterByStringMethod(oldString, ch);

}

public static String removeCharacterByIteratingString(String s,char ch)

{

StringBuilder sb = new StringBuilder();

char[] charArray = s.toCharArray();

for(int i=0; i<charArray.length; i++)

{

if(charArray[i] == ch){

} else {

sb.append(charArray[i]);

}

}

return sb.toString();

}

public static String removeCharacterByStringMethod(String s,char ch)

{

String newString = s.replaceAll(Character.toString(ch), "");

return newString;

}

}