program to remove multiple white spaces from a string

Remove multiple extra white spaces from a string if in present in between a string

• public class WhiteSpace {
• public static String removeSpace(String string) {
• String str = "";
• int length = string.length();
• if (length <= 0) {
• return str;
• }
• boolean start = true;
• boolean first = false;
• for (int i = 0; i < length; i++) {
• char c = string.charAt(i);
• if (c == ' ') {
• if (start) {
• if(first)
• str += c;
• start = false;
• }
• }else {
• first=true;
• str += c;
• start = true;
• }
• 
  
• }
• return str.trim();
• }
• public static void main(String[] args) {
• String str="  g  fdf  dddd      dfd  g   sdfasdf      ff";
• System.out.println(removeSpace(str));
• }
• 
  
• }