David questions

• is there a dictionary i can download for java?
• When is it better to use a vector than an array and vice versa in java?
• what does "do" do here? (java)
• can i overload a method with another one that takes the same parameters but has a different return type?
• In java is boolean or integer arithmetic faster?
• What is the syntax to run a maven plugin from the command line.
• divide by zero error
• 'Exception in thread "main" java.lang.NoClassDefFoundError' when running java program from command line
• In java can i store a method in a variable? [duplicate]
• Why does the program give "illegal start of type" error?

David answers