Some Java Questions....
Courtesy :-
GTU Final Exam Papers.
- 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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