[kneil_20]

how to remove a character in a string

lets say I have

import java.util.Scanner;

public class CharacterRemover{
public static void main(String[]args){
String word = "abcd+def";
//what do I do to remove e? or any of the variables or operand
}
}

[kneil_20]

how to remove a character in a string

lets say I have

public class CharacterRemover{
public static void main(String[]args){
String word = "abcd+def";
//what do I do to remove e? or any of the variables or operand
}
}

to be specific
I want to combine all the elements in a Stack argh its hard to explain.

Stack s = new Stack();
Stack combine = new Stack();
s.push('a');
s.push('b');
//what will I do so the combine Stack will be updated like below
combine.push("ab")
s.pop();
//what will I do so the combine Stack will be updated like below
combine.push("a");

Elements in s : a
Elements in combine : ab , a

This post has been edited by kneil_20: 31 August 2010 - 05:00 AM

[Dean_Grobler]

Hi there,

Consider the following example:

String word = "abcd+def";  

public static String removeChar(String word, char e) {

   String r = "";

   for (int i = 0; i < word.length(); i ++) {
      if (word.charAt(i) != e) r += word.charAt(i);
   }

   return r;
}

So yeah, then "r" would be the string the method returns (excluding the character 'e')...

Hope this helps or atleast pushes you in the right direction!
Have fun

This post has been edited by Dean_Grobler: 31 August 2010 - 05:11 AM

[aniri]

Please use the [ code ] tag correctly

Check this out.

You probably want to use the replace or substring methods...

This post has been edited by aniri: 31 August 2010 - 05:10 AM

[AmitTheInfinity]

Why you created 2 threads for same problem?
I guess this thread of yours also states the same problem.

[JackOfAllTrades]

Merged duplicate topics. Do NOT create duplicates.

Also edited topic title from "help with program"

This post has been edited by JackOfAllTrades: 31 August 2010 - 05:40 AM

[Brewer]

Could he not use charAt()?

[Dogstopper]

Two ways I can think of doing are:

To remove ALL "e"'s

s = s.replaceAll("e", "");

To remove that specific "e", I'd use a StringBuilder, since String concatenation is very time consuming...

StringBuilder sb = new StringBuilder(s);
sb = sb.deleteCharAt(place where e is);
s = sb.toString();

For a small simple replacement like yours, mine went way over, but for larger strings with more complexity, using raw Strings can be time consuming...