Jump to content
Please Use CODE Tags

why doesn't my calculator work? - JAVA

hirushaadi
By hirushaadi
in Programming
 Share
Go to solution Solved by shadow_ray,
4 hours ago, hirusha.adikari said:

and why cant i keep this a double with the getText 

Double.parseDouble(str)

 

Posted

2094602463_2020-12-1111_44_37-Calculator-Basic-dark-NetBeansIDE8.2.png.f3df9ec681caf1bb37b1d1e666e7480c.png

 

21059241_2020-12-1111_44_08-Calculator-Basic-dark-NetBeansIDE8.2.png.9add7029db0df7c3e681188428a871c0.png

 

2133198967_2020-12-1111_45_46-Calculator-Basic-dark-NetBeansIDE8.2.png.97ae869bdf51fa5529553d5aa17377fe.png

 

496264794_2020-12-1111_45_58-Calculator-Basic-dark-NetBeansIDE8.2.png.a534e4d6792f22f26fe7556391bbffe5.png

 

what ever i type, the answer i get is 32.0

 

and why cant i keep this a double with the getText

213200610_2020-12-1111_50_20-Calculator-Basic-dark-NetBeansIDE8.2.png.69285989f26530dc305258c345b52996.png

 

I USE NETBEANS

 

ANY HELP WOULD BE APPRECIATED - Thank You!

hey! i know to use a computer

Link to comment
Share on other sites
Link to post
Share on other sites
Posted

getText() returns a string, you have to convert it to a double before you can do any math on it.

Link to comment
Share on other sites
Link to post
Share on other sites
Posted

also get in the habit of using ( ) where convenient. 

 

For example  :

 

result = 9/5*hirusha+32   

 

Will give the right value in the result variable, because  division and multiplication have the same priority if my Java knowledge is accurate, so they'll be processed left to right , 9 / 5 and then the result multiplied by hirusha variable ... but for clarity it would be best to write  (9/5) * hirusha + 5  - this way any reader instantly knows the result of the fraction is multiplied, and you definitely didn't mean   9 / ( 5 * hirusha) 

 

 

 

Link to comment
Share on other sites
Link to post
Share on other sites
Posted
  • Solution
4 hours ago, hirusha.adikari said:

and why cant i keep this a double with the getText 

Double.parseDouble(str)

 

ಠ_ಠ

Link to comment
Share on other sites
Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing Programming

×