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Any decent book or online tutorial will explain methods.

while [boolean rightguess1 = false];

That is not even valid Java syntax.
You are making an assignment and not a comparison. Beside when using booleans you can use them directly in your...

That's not an error message. This is an error message!

Test.java:5: cannot find symbol
symbol : variable n
location: class Test
System.out.println(n);
^
1...

In future you need to copy and paste the full and exact error messages. They contain vital information. You also need to copy and paste the latest version of your code. Even if you make a small...