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Data Type Conversion Just beginning

Lauren Summers
Greenhorn

Joined: May 19, 2012
Posts: 1
Hi everyone,

Im just beginning Java Programming and have read up a little and been doing tutorials well i'll just cut to the chase here.

I have done a simple tutorial which involves an Applet and adds or subtracts two numbers depending on the button clicked.
There is just a small part of the tutorial which isn't explained very well and thats where the conversion from float to string takes place. I just have a question. (Ill post the entire program below everything)

My question is why is what is happening here?



I understand "msg1 = txt1.getText();" is assigning whatever I type into my first text field to my string variable "msg1" but what is actually happening on the next line? Is this line, "Float num1 = new Float(msg1);", saying take my float from num1 and put it in my string variable msg1? And once in there convert it to a String with this line "msg1 = Float.toString(num1);"?


Thanks to anybody who can understand that question! I really appreciate the help!
Below is the entire program!

Bear Bibeault
Author and ninkuma
Marshal

Joined: Jan 10, 2002
Posts: 61756
    
  67


This line uses the Float constructor to create a new Float object referenced by num1. The value of the Float is the conversion of msg1 to numeric. msg1 itself is unaffected.

See the Javadoc for java.lang.Float (⇐ click that) for more info.


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Stephan van Hulst
Bartender

Joined: Sep 20, 2010
Posts: 3649
    
  17

Welcome to CodeRanch, Lauren!
 
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