Practice Pakistan's most useful MCQs for competitive exams

Suspend thread can be revived by using ?

• (A)  yield() method
• (B)  Suspend() method
• (C)  start() method
• (D)  resume() method

Answer

Submitted By :Ali Uppal

In Java byte, short, int and long all of these are ____________?

• (A)  signed
• (B)  unsigned
• (C)  Both of the above
• (D)  None of these

Answer

Submitted By :Ali Uppal

Which method can’t be overidden ?

• (A)  println
• (B)  final
• (C)  super
• (D)  static

Answer

Submitted By :Ali Uppal

Converting a primitive type data into its corresponding wrapper class object instance is called ________________?

• (A)  boxing
• (B)  wrapping
• (C)  autoboxing
• (D)  instantiation

Answer

Submitted By :Ali Uppal

In Java, the word true is ___________________?

• (A)  A Boolean literal
• (B)  A Java keyword
• (C)  Same as value 0
• (D)  Same as value 1

Answer

Submitted By :Ali Uppal

Hot java is_______________?

• (A)  Web browser
• (B)  Java environment
• (C)  System software
• (D)  IDE

Answer

Submitted By :Ali Uppal

What is meaning of jar ?

• (A)  java array
• (B)  java architecture
• (C)  java archived
• (D)  none of these

Answer

Submitted By :Ali Uppal

A package is a collection of__________________?

• (A)  Classes and Interfaces
• (B)  Classes
• (C)  Editing tools
• (D)  Editing tools and Interfaces

Answer

Submitted By :Ali Uppal

Which method is used to perform DML statements in JDBC ?

• (A)  executeUpdate()
• (B)  executeQuery()
• (C)  execute()
• (D)  None of above

Answer

Submitted By :Ali Uppal

pow () is associated with which class ?

• (A)  Input stream class
• (B)  Object class
• (C)  Math class
• (D)  None of above

Answer

Submitted By :Ali Uppal