Capitalize the first letter of each word

Question:

How do you to capitalize the first letter of each word of a string?

Answer:

Convert the string to an array of chars and use a for loop to test if a letter on the right is a space.

Code:

public class Capitalize {
 
   public static void main(String[] args) {
 
      String str1 = "this sentence needs to be capitalized";
      char[] chars = str1.toCharArray();
 
      // all ways make first char a cap
      chars[0] = Character.toUpperCase(chars[0]);
 
      // then capitalize if space on left.
      for(int x=1; x<chars.length; x++) {
         if(chars[x-1] == ' '){
            chars[x] = Character.toUpperCase(chars[x]);
         } 
      }
 
      String str2 = new String(chars);
 
      System.out.println(str1);
      System.out.println(str2);
   }
}

Output:

$ java Capitalize 
this sentence needs to be capitalized
This Sentence Needs To Be Capitalized