Java Quiz interview questions

Which one of the following is not a wrap class?

1. Short
2. Double
3. Byte
4. Random

POP is a/an

1. Optional object programming
2. Object optional programming
3. Object oriented programming
4. None of these

Which one of the following languages is pure object oriented language?

1. Java
2. C
3. C++
4. Object pascal

Which one of the following is not a java keyword?

1. static
2. break
3. study
4. class

By invoking repaint ( ) for a component, the AWT invokes the method

1. Update ( )
2. Show ( )
3. Paint ( )
4. Draw ( )

The default priority is

1. 1
2. 2
3. 4
4. 5

When the thread is ready for execution and waiting for the availability of the processor, it is said to be

1. dead state
2. running state
3. in runable state
4. blocked state

Java declaration statement must end with

1. a semicolon
2. full stop
3. comma
4. a colon

Java

1. is most suitable for Internet programming
2. non an acronym
3. a really simple, reliable, portable and powerful language
4. all of these

Which one of the following is a logical operator?

1. ||
2. &&
3. !
4. all of these

The method which belongs to the string class is/are

1. Compare to ( )
2. Length ( )
3. Substring ( )
4. Equals ( )

For a 32-bit integer value, keyword used is

1. Boolean
2. Int
3. Short
4. Long

A web page is

1. Made up of text and HTML tags
2. Marked by an opening HTML tag
3. Marked by a closing HTML tag
4. All of these

Java is a general purpose object oriented programming language developed by

1. Patrick Naughton
2. Infosys
3. I.B.M.
4. Microsystems of USA

Which one of the following web browsers uses Just-In-Time (JIT) complier?

1. Hot JAVA
2. Netscape navigator
3. Internet Explorer
4. None of these

?: is: a/an

1. Assignment operator
2. Conditional operator
3. Logical AND
4. Inequality

Which one of the following is a java keyword?

1. Public
2. Void
3. While
4. Switch

Which one of the following concept is incorporated in building a java program?

1. Polymorphism
2. Inheritance
3. Encapsulation
4. All of these

Object oriented programming language, is

1. C++
2. Java
3. Both (a) and (b)
4. None of these

The methods wait ( ) and notify ( ) are defined in

1. java.lang.object
2. java.lang.thread
3. java.lang.string
4. java.lang.threadgroup