How to remove all occurrences of a letter from a string?

Question:

How to remove all occurrences of a letter from a string?

Answer:

Use a for loop and compare each character of the string to see if it matches the letter that needs to be removed. Build a new string based on the results.

Use the String.replace() method.

Code:

public class RemoveChars {
   public static void main(String[] args) {
 
      String str1 = "axbxcxdxex";
      String str2 = "";
      String str3 = "";
 
      // using a for loop 
      for (int i = 0; i < str1.length(); i++) {
         if (str1.charAt(i) != 'x') {
            str2 = str2 + str1.charAt(i);
         }
      }
 
      // using a for String.replace()
      str3 = str1.replace( "x", "");
 
      System.out.println(str1);
      System.out.println(str2);
      System.out.println(str3);
  }
}

Output:

$ java RemoveChars 
axbxcxdxex
abcde
abcde