Practice Pakistan's most useful MCQs for competitive exams

A method within a class is only accessible by classes that are defined within the same package as the class of the method. Which one of the following is used to enforce such restriction ?

• (A)  Declare the method with the keyword public.
• (B)  Declare the method with the keyword private.
• (C)  Do not declare the method with any accessibility modifiers.
• (D)  Declare the method with the keyword public and privat

Answer

Submitted By :Ali Uppal

javah stands for ?

• (A)  java dissasamebler
• (B)  java header file
• (C)  java interpreter
• (D)  java compiler

Answer

Submitted By :Ali Uppal

Which method of the Applet class displays the result of applet code on screen ?

• (A)  paint() method
• (B)  main() method
• (C)  run() method
• (D)  drawString() method

Answer

Submitted By :Ali Uppal

Which of the following command is used to compile the Java program ?

• (A)  java
• (B)  javac
• (C)  javap
• (D)  none of these

Answer

Submitted By :Ali Uppal

Size of int in Java is_________________?

• (A)  8 bit
• (B)  16 bit
• (C)  32 bit
• (D)  64 bit

Answer

Submitted By :Ali Uppal

Which method executes only once ?

• (A)  stop() method
• (B)  start() method
• (C)  init() method
• (D)  destroy() method

Answer

Submitted By :Ali Uppal

What is the output for the below code ? public class Test{public static void main(String[] args){int i = 010; int j = 07;System.out.println(i); System.out.println(j); } } ?

• (A)  7 8
• (B)  8 7
• (C)  9 8
• (D)  None

Answer

Submitted By :Ali Uppal

How many transaction isolation levels are defined in java.sql.Connection interface ?

• (A)  6
• (B)  2
• (C)  5
• (D)  3

Answer

Submitted By :Ali Uppal

JIT meaning ?

• (A)  just in time
• (B)  java in time
• (C)  join in time
• (D)  none of above

Answer

Submitted By :Ali Uppal

Which driver is called as thin-driver in JDBC ?

• (A)  Type-1 driver
• (B)  Type-2 driver
• (C)  Type-3 driver
• (D)  Type-4 driver

Answer

Submitted By :Ali Uppal