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Nov 9th, 2009

Super Newb Troubleshooting

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Hi all,
I'm supposed to write a small program that asks the user for a number of a month( 1= Jan, 2=Feb, etc) and then outputs the month name and the month number. If the number entered is invalid (for example, > 12 or equal 0), then the user receives an error message. Perhaps there is a better way to write this, but based on my limited knowledge, this is what I have put together. However, when I run the program it prints ALL the months of the year, and then the single number input, like this:

Give me a number
10
January10
February 10
March10
April10
May10
June10
July10
August10
September10

Can anyone tell me what I've done incorrectly?
Here is the code:

Java Syntax (Toggle Plain Text)
 
import java.util.Scanner;
 
public class Exercise3 {
	public static void main (String [] args) {
	Scanner scanner = new Scanner(System.in);
 
 
	{
	System.out.println("Give me a number");
	}
 
	int x = scanner.nextInt();
 
			while(x == 1);
		{
			System.out.println("January" + x);
			}
 
			 while(x == 2);
		{
			System.out.println("February " + x);
			}
 
			 while(x == 3);
		{
			System.out.println("March" + x);
			}
 
			 while(x == 4);
		{
			System.out.println("April" + x);
			}
			 while(x == 5);
		{
			System.out.println("May" + x);
			}
			 while(x == 6);
		{
			System.out.println("June" + x);
			}
			 while(x == 7);
		{
			System.out.println("July" + x);
			}
			while(x == 8);
		{
			System.out.println("August" + x);
			}
			 while(x == 9);
		{
			System.out.println("September" + x);
			}
			 while(x == 10);
		{
			System.out.println("October" + x);
			}
 
			 while(x == 11);
		{
			System.out.println("November" + x);
			}
			 while(x == 12);
		{
			System.out.println("December" + x);
			}
 
 
			while ((x > 12) || (x == 0));
		{
			System.out.println("Error. Number must be 12 or less");
			}
 
		}
	}
import java.util.Scanner;

public class Exercise3 {
	public static void main (String [] args) {
	Scanner scanner = new Scanner(System.in);

	
	{
	System.out.println("Give me a number");
	}
	
	int x = scanner.nextInt();
	
			while(x == 1);
		{
			System.out.println("January" + x);
			}
			
			 while(x == 2);
		{
			System.out.println("February " + x);
			}
			
			 while(x == 3);
		{
			System.out.println("March" + x);
			}
			
			 while(x == 4);
		{
			System.out.println("April" + x);
			}
			 while(x == 5);
		{
			System.out.println("May" + x);
			}
			 while(x == 6);
		{
			System.out.println("June" + x);
			}
			 while(x == 7);
		{
			System.out.println("July" + x);
			}
			while(x == 8);
		{
			System.out.println("August" + x);
			}
			 while(x == 9);
		{
			System.out.println("September" + x);
			}
			 while(x == 10);
		{
			System.out.println("October" + x);
			}
			
			 while(x == 11);
		{
			System.out.println("November" + x);
			}
			 while(x == 12);
		{
			System.out.println("December" + x);
			}
		
		
			while ((x > 12) || (x == 0));
		{
			System.out.println("Error. Number must be 12 or less");
			}
		
		}
	}

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luxxnatura

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Nov 9th, 2009

Re: Super Newb Troubleshooting

instead of while, use "if"

Java Syntax (Toggle Plain Text)
if(x == 12)
{
   System.out.println("December " + x);//put a space after the month also.
}
if(x == 12)
{
   System.out.println("December " + x);//put a space after the month also.
}

thines01

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Nov 9th, 2009

Re: Super Newb Troubleshooting

I tried using 'if' originally, but it gave the same output as above.
Thanks for the note about leaving a space after the month name -- I didnt catch that.

However, the original problem still stands..
Any help is appreciated!

luxxnatura

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Nov 9th, 2009

Re: Super Newb Troubleshooting

Without giving too much away...

Java Syntax (Toggle Plain Text)
if(x==1)
{
 //January
}
else if (x==2)
{
 //February
}
if(x==1)
{
 //January
}
else if (x==2)
{
 //February
}

I would also test for invalid numbers first before testing for the correct months.

thines01

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Nov 9th, 2009

Re: Super Newb Troubleshooting

...notice there are no semi-colons after my if statements

Java Syntax (Toggle Plain Text)
if(x==1)
{
   System.out.println("January " + x );
}
else ...
if(x==1)
{
   System.out.println("January " + x );
}
else ...

thines01

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Nov 9th, 2009

Re: Super Newb Troubleshooting

Ah, i just discovered the switch statement!

thanks for the help, I think I've got it now!

luxxnatura

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