Practice Pakistan's most useful MCQs for competitive exams

Java is a _______________language?

• (A)  moderate typed
• (B)  strogly typed
• (C)  weakly typed
• (D)  none of these

Answer

Submitted By :Ali Uppal

Runnable is_______________?

• (A)  Interface
• (B)  Class
• (C)  Variable
• (D)  Method

Answer

Submitted By :Ali Uppal

The object is created with “new” keyword ?

• (A)  At Compile-time
• (B)  At run-time
• (C)  Depends on the code
• (D)  None of these

Answer

Submitted By :Ali Uppal

Which method of java is invoked by JVM to reclaim the inaccessible memory location ?

• (A)  reclaim() method
• (B)  finalize() method
• (C)  final() method
• (D)  both b and c

Answer

Submitted By :Ali Uppal

After the compilation of the java source code, which file is created by the JVM ?

• (A)  .class
• (B)  .doc
• (C)  .java
• (D)  .cdr

Answer

Submitted By :Ali Uppal

Name the keyword that makes a variable belong to a class, rather than being defined for each instance of the class?

• (A)  abstract
• (B)  static
• (C)  volatile
• (D)  final

Answer

Submitted By :Ali Uppal

Which driver is efficient and always preferable for using JDBC applications_____________?

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

Answer

Submitted By :Ali Uppal

Main method parameter has which type of data type___________________?

• (A)  int
• (B)  char
• (C)  string
• (D)  double

Answer

Submitted By :Ali Uppal

Which command disassembles a class file_______________?

• (A)  javacmd
• (B)  javaamd
• (C)  javap
• (D)  java

Answer

Submitted By :Ali Uppal

What do you mean by javap?

• (A)  java compiler
• (B)  java debugger
• (C)  java Interpreter
• (D)  java Disassemble

Answer

Submitted By :Ali Uppal