Question 1

What is different between a Java applet and a Java application?

Accepted Answer

A) An application can in general be trusted whereas an applet can't. 
B) An applet must be executed in a browser environment. 
C) An applet is not able to access the files of the computer it runs on 
D) (
A) , (
B)  and (
C) . 
A) An application can in general be trusted whereas an applet can't. 
B) An applet must be executed in a browser environment. 
C) An applet is not able to access the files of the computer it runs on 
D) (
A) , (
B)  and (
C) . D

Question 2

Which of these keywords is not a part of exception handling?

Accepted Answer

A) try 
B) finally 
C) thrown 
D) catch 
A) try 
B) finally 
C) thrown 
D) catch C

Question 3

When method defined in subclass which has same signature as a method in a super class, it is known as method

Accepted Answer

A) Overloading 
B) Overriding 
C) Packing 
D) None of these 
A) Overloading 
B) Overriding 
C) Packing 
D) None of these B

Question 4

Which of the following is TRUE?

Accepted Answer

A) In java, an instance field declared public generates a compilation error. 
B) int is the name of a class available in the package java.lang 
C) Instance variable names may only contain letters and digits. 
D) A class has always a constructor (possibly automatically supplied by the java compiler). 
A) In java, an instance field declared public generates a compilation error. 
B) int is the name of a class available in the package java.lang 
C) Instance variable names may only contain letters and digits. 
D) A class has always a constructor (possibly automatically supplied by the java compiler).

Question 5

Consider the following program:
Import myLibrary.*;
Public class ShowSomeClass
{
// code for the class...
}
What is the name of the java file containing this program?

Accepted Answer

A) myLibrary.java 
B) ShowSomeClass.java 
C) ShowSomeClass 
D) ShowSomeClass.class 1. 
A) myLibrary.java 
B) ShowSomeClass.java 
C) ShowSomeClass 
D) ShowSomeClass.class 1.

Question 6

Under what circumstances might you use the yield method of the Thread class

Accepted Answer

A) To call from the currently running thread to allow another thread of the same or higher priority to run 
B) To call on a waiting thread to allow it to run 
C) To allow a thread of higher priority to run 
D) To call from the currently running thread with a parameter designating which thread should be allowed to run 
A) To call from the currently running thread to allow another thread of the same or higher priority to run 
B) To call on a waiting thread to allow it to run 
C) To allow a thread of higher priority to run 
D) To call from the currently running thread with a parameter designating which thread should be allowed to run

Question 7

Consider
Public class MyClass
{
Public MyClass(){/*code*/
}
// more code...
}
To instantiate MyClass, you would write?

Accepted Answer

A) MyClass mc = new MyClass(); 
B) MyClass mc = MyClass(); 
C) MyClass mc = MyClass; 
D) MyClass mc = new MyClass; 
A) MyClass mc = new MyClass(); 
B) MyClass mc = MyClass(); 
C) MyClass mc = MyClass; 
D) MyClass mc = new MyClass;

Question 8

You read the following statement in a Java program that compiles and executes.
Submarine.dive(depth);
What can you say for sure?

Accepted Answer

A) depth must be an int 
B) dive must be a method. 
C) dive must be the name of an instance fie 
A) depth must be an int 
B) dive must be a method. 
C) dive must be the name of an instance fie

Question 9

In Java Inheritance

Accepted Answer

A) all fields of a class are private 
B) all fields of a class are protected 
C) a new class is derived from an existing class 
D) none of these above 
A) all fields of a class are private 
B) all fields of a class are protected 
C) a new class is derived from an existing class 
D) none of these above

Question 10

When does Exceptions in Java arises in code sequence?

Accepted Answer

A) Run Time 
B) Compilation Time 
C) Can Occur Any Time 
D) None of the mentioned 
A) Run Time 
B) Compilation Time 
C) Can Occur Any Time 
D) None of the mentioned

Question 11

Java language has support for which of the following types of comment ?

Accepted Answer

A) block, line and javadoc 
B) javadoc, literal and string 
C) javadoc, char and string 
D) single, multiple and quote 
A) block, line and javadoc 
B) javadoc, literal and string 
C) javadoc, char and string 
D) single, multiple and quote

Question 12

Which of the following is the correct syntax for suggesting that the JVM performs garbage collection?

Accepted Answer

A) System.free(); 
B) System.setGarbageCollection(); 
C) System.out.gc(); 
D) System.gc(); 
A) System.free(); 
B) System.setGarbageCollection(); 
C) System.out.gc(); 
D) System.gc();

Question 13

Which of the following statement is correct?

Accepted Answer

A) For positive numbers, result of operators >> and >>> are same 
B) Java provides two operators to do left shift > is the zero fill right shift operator 
D) >>> is the signed right shift operator 
A) For positive numbers, result of operators >> and >>> are same 
B) Java provides two operators to do left shift > is the zero fill right shift operator 
D) >>> is the signed right shift operator

Question 14

A class that cannot be a subclass is called as______ class.

Accepted Answer

A) abstract 
B) parent class 
C) Final 
D) none of these 
A) abstract 
B) parent class 
C) Final 
D) none of these

Question 15

Consider the following code snippet
String river = new String("Columbia");
System.out.println(river.length());
What is printed?

Accepted Answer

A) 6 
B) 7 
C) 8 
D) Columbia 
A) 6 
B) 7 
C) 8 
D) Columbia

Question 16

Which of these keywords is used to manually throw an exception?

Accepted Answer

A) try 
B) finally 
C) throw 
D) catch 
A) try 
B) finally 
C) throw 
D) catch

What is different between a Java applet and a Java application?

Which of these keywords is not a part of exception handling?

When method defined in subclass which has same signature as a method in a super class, it is known as method

Which of the following is TRUE?

Consider the following program: Import myLibrary.*; Public class ShowSomeClass { // code for the class... } What is the name of the java file containing this program?

Under what circumstances might you use the yield method of the Thread class

Consider Public class MyClass { Public MyClass(){/code/ } // more code... } To instantiate MyClass, you would write?

You read the following statement in a Java program that compiles and executes. Submarine.dive(depth); What can you say for sure?

In Java Inheritance

When does Exceptions in Java arises in code sequence?

Java language has support for which of the following types of comment ?

Which of the following is the correct syntax for suggesting that the JVM performs garbage collection?

Which of the following statement is correct?

A class that cannot be a subclass is called as______ class.

Consider the following code snippet String river = new String("Columbia"); System.out.println(river.length()); What is printed?

Which of these keywords is used to manually throw an exception?

Java Programming Language

Java Object-Oriented Programming

Java Programming: Data Types, Inheritance, Interfaces, Packages, and Exception Handling

Java Exception Handling and Inputoutput Operations

Java Inputoutput and Event Handling

AWT Components and Layout Management in Java

Java Programming Concepts

Java Multithreading and Exception Handling

Java Programming Language: Inheritance, Interfaces, Packages, and Methods

Java Programming : JDBC API, Layout Managers, and Event Handling

Java RMI and Swing Framework

Java Programming: GUI, RMI, Polymorphism, and String Handling

Java Programming:methods, Data Types, Operators, and Classes

Java Programming : Event Handling, Exception Handling

Filters

Exam 8: Java Thread Class, Exception Handling, and Garbage Collection

What is different between a Java applet and a Java application?

Which of these keywords is not a part of exception handling?

When method defined in subclass which has same signature as a method in a super class, it is known as method

Which of the following is TRUE?

Consider the following program: Import myLibrary.*; Public class ShowSomeClass { // code for the class... } What is the name of the java file containing this program?

Under what circumstances might you use the yield method of the Thread class

Consider Public class MyClass { Public MyClass(){/*code*/ } // more code... } To instantiate MyClass, you would write?

You read the following statement in a Java program that compiles and executes. Submarine.dive(depth); What can you say for sure?

In Java Inheritance

When does Exceptions in Java arises in code sequence?

Java language has support for which of the following types of comment ?

Which of the following is the correct syntax for suggesting that the JVM performs garbage collection?

Which of the following statement is correct?

A class that cannot be a subclass is called as______ class.

Consider the following code snippet String river = new String("Columbia"); System.out.println(river.length()); What is printed?

Which of these keywords is used to manually throw an exception?

Java Programming Language

Java Object-Oriented Programming

Java Programming: Data Types, Inheritance, Interfaces, Packages, and Exception Handling

Java Exception Handling and Inputoutput Operations

Java Inputoutput and Event Handling

AWT Components and Layout Management in Java

Java Programming Concepts

Java Multithreading and Exception Handling

Java Programming Language: Inheritance, Interfaces, Packages, and Methods

Java Programming : JDBC API, Layout Managers, and Event Handling

Java RMI and Swing Framework

Java Programming: GUI, RMI, Polymorphism, and String Handling

Java Programming:methods, Data Types, Operators, and Classes

Java Programming : Event Handling, Exception Handling

Filters

Consider Public class MyClass { Public MyClass(){/code/ } // more code... } To instantiate MyClass, you would write?