Display first fetter of a word with Capital letter in a given Sentence or String

The below code will display every first letter of a word in the sentence will display as a capital letter or in Camel Case using java program.

package com.javabynataraj.strings;

public class StringSpace {
 public static void main(String[] args) {
  String input = "HE IS A GOOD BOY";
  StringBuilder sb = new StringBuilder();
  for( String oneString : input.toLowerCase().split(" ") )
  {
      sb.append( oneString.substring(0,1).toUpperCase() );
      sb.append( oneString.substring(1)+" " );
  }
  System.out.println("Output--> "+sb);
 }
}

Output:

Output--> He Is A Good Boy