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Icon   floppyspace always learning something...

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Posts I've Made

  1. In Topic: Trimming and Parsing the input?

    Posted 27 Mar 2013

    View PostGungnir, on 27 March 2013 - 03:30 PM, said:

    Quote

    you can not convert a double to a string


    Yes, you can:
    	while((count < SIZE)){    
	   System.out.print("Grade " + (++count) + ": ");
	   gradesEntered = bf.readLine( ) ;
	    
	   if(gradesEntered.length() < 1){
	      System.out.println(String.valueOf(total));
              break; 
	   }
	   total = total + Double.parseDouble(gradesEntered);
        }


    I was speaking to relation to it been used in this way....

    gradesEntered = Double.parseDouble(bf.readLine( )) ;

  2. In Topic: Trimming and Parsing the input?

    Posted 27 Mar 2013

    perhaps I should clarify what was meant by my post

    grades entered has been used as a string

    gradesEntered = Double.parseDouble(bf.readLine( )) ;


    you can not convert a double to a string

    if something similar to this is used

          while((count < SIZE) && (exit == false)){     
         System.out.print("Grade " + (++count) + ": ");
         gradesEntered = bf.readLine( ) ;
         
         total = total + Double.parseDouble(gradesEntered);
         
         if(gradesEntered.length() < 1){
            System.out.println(total);
            exit = true;   
         }


    it will throw an NumberFormatException-empty string (true the exception could be handled), if the user does not enter anything and just presses enter past an input line (which I interpret as how MissHaller wants to stop the program from running).

    if(gradesEntered.length() < 1){
            System.out.println(total);
            exit = true;   
         }
         else
         {
            total = total + Double.parseDouble(gradesEntered);
         }


    this will stop the error from showing up.

    as for the while running once I am incorrect.

  3. In Topic: java assignment trying to find the surface area of the exterior

    Posted 26 Mar 2013

    View Postdurianruntuh, on 27 March 2013 - 02:31 PM, said:

    I am a beginner at programming in java and have run into a lot of trouble trying to write the program).


    post what you have done, effort gets rewarded with answers.

  4. In Topic: Trimming and Parsing the input?

    Posted 26 Mar 2013

    As Gungnir says,

    But you will need to so something like 

    if(gradesEntered.length() < 1){
            exit = true;   
         }
         else
         {
            total = total + Double.parseDouble(gradesEntered);
         }


    so you do not get an error when you parse the input and also note because it is a while loop it will always perform once so your output may not be as you desire but check it anyway.

    gl

  5. In Topic: Loop to display asterisks

    Posted 26 Mar 2013

    as drakethedragon says it is one line 

    for(int k = 6; k >=1; k--)


    needs to be changed to

    for(int k = 0; k < j; k++)

My Information

Member Title:
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2
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Current main interest PHP,Java,Web Development

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Comments

Page 1 of 1
  1. Photo

    David W Icon

    07 Jun 2012 - 01:38
    Like your attitude, my friend.
  2. Photo

    floppyspace Icon

    12 Jan 2012 - 21:04
    floppyspace has no profile comments yet. Why not say hello?
    Hello
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