Question 1

Which of these exceptions will be thrown if we use null reference for an arithmetic operation?

Accepted Answer

A) ArithmeticException 
B) NullPointerException 
C) IllegalAccessException 
D) IllegalOperationException 
A) ArithmeticException 
B) NullPointerException 
C) IllegalAccessException 
D) IllegalOperationException B

Question 2

Which of these class is a superclass of all other classes?

Accepted Answer

A) Math 
B) Process 
C) System 
D) Object 
A) Math 
B) Process 
C) System 
D) Object D

Question 3

Which keyword is used by the method to refer to the object that invoked it?

Accepted Answer

A) import 
B) catch 
C) abstract 
D) this 
A) import 
B) catch 
C) abstract 
D) this D

Question 4

Which of these method(s) is/are used for writing bytes to an outputstream?

Accepted Answer

A) put() 
B) print() and write() 
C) printf() 
D) write() and read() 
A) put() 
B) print() and write() 
C) printf() 
D) write() and read()

Question 5

Which of these methods of a Thread class is used to suspend a thread for a period of time?

Accepted Answer

A) sleep() 
B) terminate() 
C) suspend() 
D) stop() 
A) sleep() 
B) terminate() 
C) suspend() 
D) stop()

Question 6

Which of the interface contains all the methods used for handling thread related operations in Java?

Accepted Answer

A) Runnable interface 
B) Math interface 
C) System interface 
D) ThreadHandling interface 
A) Runnable interface 
B) Math interface 
C) System interface 
D) ThreadHandling interface

Question 7

Which of these operators is used to allocate memory for an object?

Accepted Answer

A) malloc 
B) alloc 
C) new 
D) give 
A) malloc 
B) alloc 
C) new 
D) give

Question 8

Which of the below is invalid identifier with the main method?

Accepted Answer

A) public 
B) static 
C) private 
D) final 
A) public 
B) static 
C) private 
D) final

Question 9

Which of this method of class String is used to obtain a length of String object?

Accepted Answer

A) get() 
B) Sizeof() 
C) lengthof() 
D) length() 
A) get() 
B) Sizeof() 
C) lengthof() 
D) length()

Question 10

What is the string contained in s after following lines of code?
StringBuffersnewStringBuffer("Hello");S)deleteCharAt(0);

Accepted Answer

A) Hell 
B) ello 
C) Hel. 
D) llo. 
A) Hell 
B) ello 
C) Hel. 
D) llo.

Question 11

How to copy contents of array?

Accepted Answer

A) System.arrayCopy() 
B) Array.copy() 
C) Arrays.copy() 
D) Collection.copy() 
A) System.arrayCopy() 
B) Array.copy() 
C) Arrays.copy() 
D) Collection.copy()

Question 12

Which of these class is not related to input and output stream in terms of functioning?

Accepted Answer

A) File 
B) Writer 
C) InputStream 
D) Reader 
A) File 
B) Writer 
C) InputStream 
D) Reader

Question 13

Which of these data type can be used for a method having a return statement in it?

Accepted Answer

A) void 
B) int 
C) float 
D) both int and float 
A) void 
B) int 
C) float 
D) both int and float

Question 14

Which of these are selection statements in Java?

Accepted Answer

A) if() 
B) for() 
C) continue 
D) break 
A) if() 
B) for() 
C) continue 
D) break

Question 15

Which of these selection statements test only for equality?

Accepted Answer

A) if 
B) switch 
C) if & switch 
D) none of the mentioned 
A) if 
B) switch 
C) if & switch 
D) none of the mentioned

Question 16

Which of these classes is used for input and output operation when working with bytes?

Accepted Answer

A) InputStream 
B) Reader 
C) Writer 
D) All of the mentioned 
A) InputStream 
B) Reader 
C) Writer 
D) All of the mentioned

Question 17

Which of these jump statements can skip processing the remainder of the code in its body for a particular iteration?

Accepted Answer

A) break 
B) return 
C) exit 
D) continue 
A) break 
B) return 
C) exit 
D) continue

Question 18

If an expression contains double, int, float, long, then the whole expression will be promoted into which of these data types?

Accepted Answer

A) long 
B) int 
C) double 
D) float 
A) long 
B) int 
C) double 
D) float

Question 19

Which of these is the method which is executed first before execution of any other thing takes place in a program?

Accepted Answer

A) main method 
B) finalize method 
C) static method 
D) private method 
A) main method 
B) finalize method 
C) static method 
D) private method

Question 20

Which of these can not be used for a variable name in Java?

Accepted Answer

A) identifier 
B) keyword 
C) identifier & keyword 
D) none of the mentioned 
A) identifier 
B) keyword 
C) identifier & keyword 
D) none of the mentioned

Which of these exceptions will be thrown if we use null reference for an arithmetic operation?

Which of these class is a superclass of all other classes?

Which keyword is used by the method to refer to the object that invoked it?

Which of these method(s) is/are used for writing bytes to an outputstream?

Which of these methods of a Thread class is used to suspend a thread for a period of time?

Which of the interface contains all the methods used for handling thread related operations in Java?

Which of these operators is used to allocate memory for an object?

Which of the below is invalid identifier with the main method?

Which of this method of class String is used to obtain a length of String object?

What is the string contained in s after following lines of code? StringBuffersnewStringBuffer("Hello");S)deleteCharAt(0);

How to copy contents of array?

Which of these class is not related to input and output stream in terms of functioning?

Which of these data type can be used for a method having a return statement in it?

Which of these are selection statements in Java?

Which of these selection statements test only for equality?

Which of these classes is used for input and output operation when working with bytes?

Which of these jump statements can skip processing the remainder of the code in its body for a particular iteration?

If an expression contains double, int, float, long, then the whole expression will be promoted into which of these data types?

Which of these is the method which is executed first before execution of any other thing takes place in a program?

Which of these can not be used for a variable name in Java?

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 Thread Class, Exception Handling, and Garbage Collection

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 : Event Handling, Exception Handling

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Exam 14: Java Programming:methods, Data Types, Operators, and Classes

Which of these exceptions will be thrown if we use null reference for an arithmetic operation?

Which of these class is a superclass of all other classes?

Which keyword is used by the method to refer to the object that invoked it?

Which of these method(s) is/are used for writing bytes to an outputstream?

Which of these methods of a Thread class is used to suspend a thread for a period of time?

Which of the interface contains all the methods used for handling thread related operations in Java?

Which of these operators is used to allocate memory for an object?

Which of the below is invalid identifier with the main method?

Which of this method of class String is used to obtain a length of String object?

What is the string contained in s after following lines of code? StringBuffersnewStringBuffer("Hello");S)deleteCharAt(0);

How to copy contents of array?

Which of these class is not related to input and output stream in terms of functioning?

Which of these data type can be used for a method having a return statement in it?

Which of these are selection statements in Java?

Which of these selection statements test only for equality?

Which of these classes is used for input and output operation when working with bytes?

Which of these jump statements can skip processing the remainder of the code in its body for a particular iteration?

If an expression contains double, int, float, long, then the whole expression will be promoted into which of these data types?

Which of these is the method which is executed first before execution of any other thing takes place in a program?

Which of these can not be used for a variable name in Java?

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 Thread Class, Exception Handling, and Garbage Collection

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 : Event Handling, Exception Handling

Filters