Java Questions For Exams...

Some Java Questions....

• What is JAVA?
• Explain The Features of JAVA.
• How many types of Modifiers are in Java? Explain Each.
• How many type of Classes available in Java? Explain any two with example.
• How many data types are available in Java? Explain all Wrapper class for that data type.
• What is abstract class? Explain with example.
• What is object class? Explain with example.
• Class defined in Java without using extends keyword having parent(super) class.Explain Why?
• It is not compulsory to import java.lang package in Java source file.Explain Why?
• Define checked and unchecked exception.
• Discuss instance of operator in brief.
• Define Words : Final, Finally, Finalize, Super, enum, Synchronized, Variable Shadowing, Package, Import.
• What is bytecode? How it generates?
• Diffrence between:-
• Public - Protected.
• Abstract class - Object class.
• character stream - byte stream.
• Abstract class - Interface.
• Catch - Finally.
• Applet - Form.
• A method in Interface is always abstract. Why? 
• When no constructor defined in class then also object of such class can be created. Why?
•  
• Abstract and final can not be used together. Justify.
• List any two AWT components.
• What is use of import statement?
• Differentiate throw and throws.
• Discuss Piped streams in brief.
• What is meta-annotation.
• What is Inheritence? List types of inheritence.
• Explain Thread Life Cycle.
• Explain Applet Life Cycle.
• How File handling works in java. List any three operations on file and explain it.
• Explain Framework. What do you mean by an Applet?
• What is the difference between "==" operator and equals() method of Object class?
• Explain the difference between Comparable and the Comparator interfaces.
• Write a short note on the role of Pattern and Matcher class for handling
• regular expression with example.
• Define anonymous class.
• Explain the functionality of ItemEvent and TextEvent with example.

Courtesy :-
GTU Final Exam Papers.

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