Programming Forums > Application Development > Java

shangnyun · Jun 8th, 2005, 3:58 AM

Here's the code:

import java.util.*;

public class FirstProgram
{
    public static void main(String[] args)
    {
        System.out.println("Hello out there.");
        System.out.println("I will add two numbers for you.");
        System.out.println("Enter two whole numbers on a line:");

        int n1, n2;

        Scanner keyboard = new Scanner(System.in);
        n1 = keyboard.nextInt( );
        n2 = keyboard.nextInt( );

        System.out.println("The sum of those two numbers is");
        System.out.println(n1 + n2);
    }
}

What kind of errors are those? I'm just completely puzzled. I'd like to know what I'm doing wrong. This again is a program from my book, and it appears to be 100% correct to me. No errors or anything in there. Well, of course not, because it compiles fine. But whenever I try to run it, from within UltraEdit32, that is, I get these errors down in the output window.

ODDLY, when I do everything in a dos prompt window, like using the "java" command to run it... it runs just fine! No errors at all. This probably has something to do with UltraEdit. I'd just like to know what's up

Thanks

Berto · Jun 8th, 2005, 5:06 AM

I think it is either because you did not enter a value or entered a character?

its looking for an int but finding nothing therefore make sure you put a int into the console, or put some error correction in there.

shangnyun · Jun 8th, 2005, 5:33 AM

No the thing is... this only happens in UltraEdit32. When I type "java" in the command-prompt to manually run this, it runs without any errors. Only within UE32 do I get this bunch of errors, and I have no idea why

I'll try posting over at the UE32 forums maybe. It's more of an editor-specific problem than it is a Java coding problem.

skuinders · Jun 9th, 2005, 10:31 AM

the Scanner class was introduced in 1.5... maybe the IDE you are using doesn't support the 1.5 features yet?

shangnyun · Jun 9th, 2005, 10:33 AM

I'm using nothing but a text editor. UltraEdit32. The rest is plain vanilla Java JDK 5.0. I have no IDE.

Ooble · Jun 9th, 2005, 10:53 AM

Perhaps the current directory is wrongly set in the UltraEdit interface - this causes problems with many compilers.

xavier · Jun 9th, 2005, 12:21 PM

I haven't used UltraEdit, but can you input numbers when you run your program? Does a DOS window apear? or does it run in UltraEdit.

If it runs in UltraEdit, maybe you can't give any input and that's why it dies.

nnxion · Jun 9th, 2005, 12:53 PM

I haven't used UltraEdit either (I use TextPad), and that has the possiblity to capture output so no 'dos box' pops up.

Jun 8th, 2005, 3:58 AM	#1
shangnyun Programmer Join Date: Jun 2005 Posts: 34 Rep Power: 0	Run-Time Complications/Errors Here's the code: (Toggle Plain Text) import java.util.; public class FirstProgram { public static void main(String[] args) { System.out.println("Hello out there."); System.out.println("I will add two numbers for you."); System.out.println("Enter two whole numbers on a line:"); int n1, n2; Scanner keyboard = new Scanner(System.in); n1 = keyboard.nextInt( ); n2 = keyboard.nextInt( ); System.out.println("The sum of those two numbers is"); System.out.println(n1 + n2); } } import java.util.; public class FirstProgram { public static void main(String[] args) { System.out.println("Hello out there."); System.out.println("I will add two numbers for you."); System.out.println("Enter two whole numbers on a line:"); int n1, n2; Scanner keyboard = new Scanner(System.in); n1 = keyboard.nextInt( ); n2 = keyboard.nextInt( ); System.out.println("The sum of those two numbers is"); System.out.println(n1 + n2); } } What kind of errors are those? I'm just completely puzzled. I'd like to know what I'm doing wrong. This again is a program from my book, and it appears to be 100% correct to me. No errors or anything in there. Well, of course not, because it compiles fine. But whenever I try to run it, from within UltraEdit32, that is, I get these errors down in the output window. ODDLY, when I do everything in a dos prompt window, like using the "java" command to run it... it runs just fine! No errors at all. This probably has something to do with UltraEdit. I'd just like to know what's up Thanks Last edited by cscgal; Oct 18th, 2007 at 9:18 AM. Reason: Removed broken attachment

Jun 8th, 2005, 5:06 AM	#2
Berto Programming Guru Join Date: Aug 2004 Posts: 1,022 Rep Power: 6	I think it is either because you did not enter a value or entered a character? its looking for an int but finding nothing therefore make sure you put a int into the console, or put some error correction in there. __________________ "Put your hand on a hot stove for a minute, and it seems like an hour. Sit with a pretty girl for an hour, and it seems like a minute. THAT'S relativity." - Albert Einstein

Jun 9th, 2005, 10:31 AM	#4
skuinders Hobbyist Programmer Join Date: Jun 2005 Location: MA, US Posts: 204 Rep Power: 4	the Scanner class was introduced in 1.5... maybe the IDE you are using doesn't support the 1.5 features yet? __________________ "A stupid man's report of what a clever man says can never be accurate, because he unconciously translates what he hears into something he can understand." - B. Russell http://web.bryant.edu/~srk2

Jun 9th, 2005, 10:53 AM	#6
Ooble I eat cake for breakfast. Join Date: Jul 2004 Location: In my box. Posts: 4,434 Rep Power: 9	Perhaps the current directory is wrongly set in the UltraEdit interface - this causes problems with many compilers. __________________ Me :: You :: Them

Jun 9th, 2005, 12:21 PM	#7
xavier Professional Programmer Join Date: Oct 2004 Location: .ro Posts: 381 Rep Power: 4	I haven't used UltraEdit, but can you input numbers when you run your program? Does a DOS window apear? or does it run in UltraEdit. If it runs in UltraEdit, maybe you can't give any input and that's why it dies. __________________ Don't take life too seriously, it's not permanent !

Jun 8th, 2005, 5:33 AM	#3
shangnyun Programmer Join Date: Jun 2005 Posts: 34 Rep Power: 0	No the thing is... this only happens in UltraEdit32. When I type "java" in the command-prompt to manually run this, it runs without any errors. Only within UE32 do I get this bunch of errors, and I have no idea why I'll try posting over at the UE32 forums maybe. It's more of an editor-specific problem than it is a Java coding problem.

Jun 9th, 2005, 10:33 AM	#5
shangnyun Programmer Join Date: Jun 2005 Posts: 34 Rep Power: 0	I'm using nothing but a text editor. UltraEdit32. The rest is plain vanilla Java JDK 5.0. I have no IDE.

Jun 9th, 2005, 12:53 PM	#8
nnxion Programming Guru Join Date: Jun 2005 Location: elemental plane Posts: 1,429 Rep Power: 5	I haven't used UltraEdit either (I use TextPad), and that has the possiblity to capture output so no 'dos box' pops up. __________________ "Employ your time in improving yourself by other men's writings, so that you shall gain easily what others have labored hard for." -- Socrates

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Programming Forums > Application Development > Java

Run-Time Complications/Errors