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Index › Programming Questions & Help › Syntax Questions › One more question re: Table in "Visualizing Data"
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One more question re: Table in "Visualizing Data" (Read 485 times)
Phattee
One more question re: Table in "Visualizing Data"
Jul 8th, 2009, 10:18am  
Hello,

Sorry to keep bugging you all with these. Ok, so the Table class (found at http://benfry.com/writing/map/Table.pde) used for the Map example on pg 33 features the following chunk of code:

Quote:
  float getFloat(int rowIndex, int column) {
    return parseFloat(getString(rowIndex, column));
  }



which I think then sends you to this chunk of code:

Quote:
  String getString(int rowIndex, int column) {
    return data[rowIndex][column];
  }



which gets you the coordinates you need to put circles on your map. My confusion arises from this line:

Quote:
    return parseFloat(getString(rowIndex, column));



because I can't find parseFloat defined anywhere in the code. How does the program know what to do with parseFloat? What is parseFloat? How come it's not declared as a variable or a function?
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NoChinDeluxe
Re: One more question Table in "Visualizing Data"
Reply #1 - Jul 8th, 2009, 10:52am  
parseFloat() is a standard Java method for creating a new float based on the value represented by the string passed as an argument.

You can find it here in the Java doc.
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Phattee
Re: One more question Table in "Visualizing Data"
Reply #2 - Jul 8th, 2009, 11:17am  
Awesome thank you!

I think I'm gonna go out and buy Java for Dummies.

Edit: OMG 900 pages nevermind
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« Last Edit: Jul 8th, 2009, 1:50pm by Phattee »  
 
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