comparison

[Holly Leery]

heres a new code: how do i fix the end to say the following:

First Person: Smith, John (31)
Second Person: Doe, Mike (35)
Doe is older than Smith

and have it where three different things can happen i.e. doe older that smith, smith older than doe, or the same age.

 
// This program prompts the user to enter their first and last name
// plus thier age and compare the two values  
 
import javax.swing.*;  
 
public class HW1second {          
 
// access modifier     
public static void main( String[] args ) {
 

//get user1 first name
String user1firstname = JOptionPane.showInputDialog(
"Please enter your first name: ");
 
//get user1 last name
String user1lastname = JOptionPane.showInputDialog(
"Please enter your last name: ");
 
//get user1 age
String user1age = JOptionPane.showInputDialog(
"Please enter your age:");
int user1age = Integer.parseInt(user1age);

 
//get user2 first name
String user2firstname = JOptionPane.showInputDialog(
"Please enter your first name:");
 
//get user2 last name
String user2lastname = JOptionPane.showInputDialog(
"Please enter your last name:");
 
//get user1 age
String user2age = JOptionPane.showInputDialog(
"Please enter your age:");
int user2age = Integer.parseInt(user2age);

 
// compare the values 
        // boolean comparison statement
           String message = "First Person:" + user1firsttname + user1lastname + "(user1age)" + "\n"
   + "Second Person:" + user2firstname + user2lastname + "(user2age)" + "\n"
   +
    
        if ( user1age > user2age ) 
message =
           (user1lastname + "is older than" + user2lastname);
         
        if ( user1age < user2age ) =
        message =
   (user2lastname + "is older than" + user1lastname);
         
        if ( user1age == user2age ) =
        message =
   (user1lastname + "is the same age as" + user2lastname);
 
choice = JOptionPane.showInputDialog(message);
                          

// quit the program         
System.exit( 0 );     

   } 
}   
 

[Nick George]

This code works perfectly, once you remove all the silly mistakes.

I feel like you can figure them out on your own. but a few hints:

if(boolean)
do stuff;

is an if statement. you have

if(boolean) =
do stuff;

that equals sign doesn't make sense

next: end every statement with a ;. you may not end a string with +.

Variable names must be unique. you can't have both a string and an int with user1age.

what is 'choice'? if I'm the computer, how do I recognize 'choice'?

final note:
put some time into debugging your code before you ask someone else to fix it.
[ September 11, 2004: Message edited by: Joseph George ]

[Dirk Schreckmann]

I like to program in tiny little baby steps. I write one line of code and then check to see if it compiles. (I use a fancy IDE that checks syntax continuously as I type.) This way, whenever I do have a compiler error, I have a pretty good idea of exactly where it is, and it's usually pretty easy to recognize the mistake quickly.

I've run into quite a few very new programmers that had the habit of writing dozens of lines of code before seeing what the compiler had to say about what things. These folks also seemed to have problems figuring out fixing the dizzying web of errors they'd often face.
[ September 11, 2004: Message edited by: Dirk Schreckmann ]

[Nick George]

appologies for a perhaps over brusque response.