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Array of ten numbers

 
Greenhorn
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Write a program to find the highest out of an array of ten numbers?
 
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Sounds like fun. What have you tried so far?
 
Finbarrs Oketunji
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Let's say I am a Newbie in JAVA that needs help with that and I have gone beyond the Hello World thing.
 
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Originally posted by Finbarrs Oketunji:
Let's say I am a Newbie in JAVA that needs help with that and I have gone beyond the Hello World thing.


Then this sounds like a great exercise!

Do you know how to create the array? Can you describe a general process for finding that largest number?
 
Finbarrs Oketunji
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This is what I have been able to do:

 
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You're trying to assign an int array to an int variable. Instead you should initialise the 'largest' variable to the first value in the array


Java is also case sensitive - 'For' should be 'for'

Make those changes and then if you are still having problems, post your new code and tell us what the problems are - if it doesn't compile show the error messages. If it doesn't work as you expect, tell us what it is doing and why this isn't what you want it to do.
 
Finbarrs Oketunji
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I included it but it isn't still compiling so I re-wrote another one to give an output of the highest number the same thing keeps occurring, help will be welcomed:

 
Joanne Neal
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Tell us what the problems are - if it doesn't compile show the error messages. If it doesn't work as you expect, tell us what it is doing and why this isn't what you want it to do.
 
Finbarrs Oketunji
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That was the error it displayed.
 
lowercase baba
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that's telling you that the jvm doesn't know what the variable 'numNames' is in the place where you are using it.

Variables in java have what is called "scope" - they are not universally available anywhere in the code.

BASICALLY, a variable's scope is the set of curly brackets where it is defined. so, taking your code...



Since your variable is defined inside the main() method, that is the only place you can use it. You can make it a class variable, and then refer to it anywhere in the class, or you could pass it into the method.
[ December 13, 2007: Message edited by: Fred Rosenberger ]
 
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