I need help as soon as possible. statement wont execute the if statement

Question

I can not seen to make my "if statement work" can someone guide me in the right direction.
import java.util.Scanner;
import java.lang.Math;
public class bm
* main
public static void main(String[] args) throws Exception
Scanner scanner1,scanner2,scanner3;
String sGradeType,sGrade="",sUGrade;
char cGrade;
double dGrade;
long drGrade;
int iGrade=0;
System.out.println("Type of Entry (Chars(C)/Digits(D)");
scanner1 = new Scanner(System.in);
scanner2 = new Scanner(System.in);
sGradeType = scanner1.next();
sGradeType = "D";
if (sGradeType == "D")
System.out.println("Enter Grade number");
scanner2 = new Scanner(System.in);
dGrade = scanner2.nextDouble();
drGrade = Math.round(dGrade);
iGrade = (int)dGrade;
switch (iGrade)
case 75 :
sGrade = "A" ;
break ;
case 60 :
sGrade = "B";
break ;
case 50 :
sGrade = "C";
break ;
case 40 :
sGrade = "D";
break ;
default :
System.out.print("illegal Grade !") ;
System.out.printf("Grade Value, %8.3f. Grade %s", dGrade, sGrade);
} else if (sGradeType == "C")
System.out.println("Enter Grade Letter");
scanner3 = new Scanner(System.in);
sGrade = scanner3.next();
sUGrade = sGrade.toUpperCase();
cGrade = sUGrade.charAt(0);
switch (cGrade)
case 'A' :
iGrade = 75 ;
break ;
case 'B' :
iGrade = 60;
break ;
case 'C' :
iGrade = 50;
break ;
case 'D' :
iGrade = 40;
break ;
default :
System.out.print("illegal Grade !") ;
System.out.printf("Grade Value, %d, Grade %s", iGrade, sGrade);
} // end of method main
}

Answer 1

Oops! Hit the wrong button.
OK.
First up - welcome to the Sun forums.
A few points.
>
I can not seen to make my "if statement work" can someone guide me in the right direction.>1) Maybe the if statement is just a little tired. Give it a good night's rest and it will probably do twice the work tomorrow.
Or to put that a less funny way..
Please describe what it was supposed to do, why you thought it would do that, and what it actually did.
2) Which 'if' statement? There are two if statements in that code.
3) String comparison should not be done using '==', instead use string1.equals(string2)
4) Please use the code formatting tags when posting code, and indent code using the common conventions.
This is what I mean..
import java.util.Scanner;
import java.lang.Math;
public class bm
* main
     public static void main(String[] args) throws Exception
          Scanner scanner1,scanner2,scanner3;
          String sGradeType,sGrade="",sUGrade;
          char cGrade;
          double dGrade;
          long drGrade;
          int iGrade=0;
          System.out.println("Type of Entry (Chars(C)/Digits(D)");
          scanner1 = new Scanner(System.in);
          scanner2 = new Scanner(System.in);
          sGradeType = scanner1.next();
          sGradeType = "D";
          if (sGradeType == "D")
               System.out.println("Enter Grade number");
               scanner2 = new Scanner(System.in);
               dGrade = scanner2.nextDouble();
               drGrade = Math.round(dGrade);
               iGrade = (int)dGrade;
               switch (iGrade)
                    case 75 :
                         sGrade = "A" ;
                         break ;
                    case 60 :
                         sGrade = "B";
                         break ;
                    case 50 :
                         sGrade = "C";
                         break ;
                    case 40 :
                         sGrade = "D";
                         break ;
                    default :
                         System.out.print("illegal Grade !") ;
               System.out.printf("Grade Value, %8.3f. Grade %s", dGrade, sGrade);
          } else if (sGradeType == "C")
               System.out.println("Enter Grade Letter");
               scanner3 = new Scanner(System.in);
               sGrade = scanner3.next();
               sUGrade = sGrade.toUpperCase();
               cGrade = sUGrade.charAt(0);
               switch (cGrade)
                    case 'A' :
                         iGrade = 75 ;
                         break ;
                    case 'B' :
                         iGrade = 60;
                         break ;
                    case 'C' :
                         iGrade = 50;
                         break ;
                    case 'D' :
                         iGrade = 40;
                         break ;
                    default :
                         System.out.print("illegal Grade !") ;
               System.out.printf("Grade Value, %d, Grade %s", iGrade, sGrade);
     } // end of method main
} Edited by: AndrewThompson64 on Apr 12, 2009 10:47 PM