Lab4-Plural

JLab>javac Plural.java
JLab>
JLab>java Selftest 

JLab> testPlural : ok ok ok ok ok ok ok ok ok ok ok ok ok ok ok ok ok ok ok ok ok ok ok ok ok  (10.0/10.0)
JLab> : -----------------------------
JLab> : ?????? 10.0 ????? (???? 10.0)
JLab> : -----------------------------
JLab> :<POINT>10.0</POINT> (<TOTAL>10.0</TOTAL> )
JLab>

import java.util.Scanner;

public class Plural {
  
  public static void main(String[] args) {
    Scanner kb = new Scanner(System.in);
    System.out.print("singular noun = ");
    String s = kb.next();
    String p = "";
    String d = s.toLowerCase();
    int l = d.length();
    String c1 = s.substring(l - 1, l);
    String c2 = s.substring(l - 2, l);
    String b2 = s.substring(0, l - 1);
    
    if (c1.equals("s") || c1.equals("x") || c2.equals("ch")) {
      p = d + "es";
      } 
        
      String c21 = c2.substring(0, 1);
      if (c1.equals("y")){
        if (c21.equals("a") || c21.equals("e") || c21.equals("i") || c21.equals("o") || c21.equals("u")) {
          p = d + "s";
        } else {
          p = b2 +"ies";
        }
      
      }
      if(!c1.equals("s") && !c1.equals("x") && !c2.equals("ch") && !c1.equals("y")){
        p = d + "s";
        }
          
    System.out.println("plural = " + p);
  }

}

SM=0, CM=29, ST=50, KY=726, TR=60:00
ERR = 60:00 ;
ERR = 60:00 ;
ERR = 60:00 ;
ERR = 60:00 ;
ERR = 60:00 ;
ERR = 60:00 ;
ERR = 60:00 ;
ERR = 60:00 ;
ERR = 60:00 ;
ERR = 60:00 ;
ERR = 60:00 ;
ERR = 60:00 ;
ERR = 60:00 ;
ERR = 60:00 ;
ERR = 60:00 ;
ERR = 60:00 ;
ERR = 60:00 ;
ERR = 60:00 ;
ERR = 60:00 ;
ERR = 60:00 ;
ERR = 60:00 ;
ERR = 60:00 ;
ERR = 60:00 ;
ERR = 60:00 ;
ERR = 60:00 ;
ERR = 60:00 ;
ERR = 60:00 ;
ERR = 60:00 ;
ERR = 60:00 ;