Question 1

Which is the output of the following statements? System.out.print("Hello ");
System.out.println("World");

Accepted Answer

A)  Hello World 
B)  HelloWorld 
C)  Hello World. 
D)  World Hello 
A)  Hello World 
B)  HelloWorld 
C)  Hello World. 
D)  World Hello

Question 2

format specifier ________ is a placeholder for an int value.

Accepted Answer

A)  %n 
B)  %d 
C)  %int 
D)  %s 
A)  %n 
B)  %d 
C)  %int 
D)  %s

Question 3

Which of the following is a Scanner method for inputting an integer value?

Accepted Answer

A)  nextInteger 
B)  integer 
C)  nextInt 
D)  int 
A)  nextInteger 
B)  integer 
C)  nextInt 
D)  int

Question 4

of the following is a relational or equality operator except:

Accepted Answer

A)   
A)

Question 5

Which of the following is not a Java primitive type?

Accepted Answer

A)  char 
B)  byte 
C)  real 
D)  double 
A)  char 
B)  byte 
C)  real 
D)  double

Question 6

Which of the following statements would display the phase Java is fun?

Accepted Answer

A)  System.out.println("hellois fun\rJava "); 
B)  System.out.println('Java is fun'); 
C)  System.out.println("\"Java is fun\""); 
D)  System.out.println(Java is fun); 
A)  System.out.println("hellois fun\rJava "); 
B)  System.out.println('Java is fun'); 
C)  System.out.println("\"Java is fun\""); 
D)  System.out.println(Java is fun);

Question 7

End-of-line comments that should be ignored by the compiler are denoted using

Accepted Answer

A)  Two forward slashes (//). 
B)  Three forward slashes (///). 
C)  A slash and a star (/*). 
D)  A slash and two stars (/**). 
A)  Two forward slashes (//). 
B)  Three forward slashes (///). 
C)  A slash and a star (/*). 
D)  A slash and two stars (/**).

Question 8

Java's predefined classes are grouped into

Accepted Answer

A)  packets. 
B)  declarations. 
C)  Galleries. 
D)  packages. 
A)  packets. 
B)  declarations. 
C)  Galleries. 
D)  packages.

Question 9

Which of the following is a variable declaration statement?

Accepted Answer

A)  int total; 
B)  import java.util.Scanner; 
C)  public static void main(String args[]) 
D)  // first string entered by user 
A)  int total; 
B)  import java.util.Scanner; 
C)  public static void main(String args[]) 
D)  // first string entered by user

Question 10

Which command compiles the Java source code file Welcome.java?

Accepted Answer

A)  cd Welcome.java 
B)  javac Welcome.java 
C)  java Welcome.java 
D)  compile Welcome.java 
A)  cd Welcome.java 
B)  javac Welcome.java 
C)  java Welcome.java 
D)  compile Welcome.java

Question 11

Given the Java statement int sum = number1 + number2;
Which of the following statements is false?

Accepted Answer

A)  It's an assignment statement. 
B)  It calculates the sum of variables number1 and number2. 
C)  The operands of the addition operator are number1 and number2. 
D)  It assigns the value of number1 to sum. 
A)  It's an assignment statement. 
B)  It calculates the sum of variables number1 and number2. 
C)  The operands of the addition operator are number1 and number2. 
D)  It assigns the value of number1 to sum.

Question 12

Which of the following statements is false?

Accepted Answer

A)  Primitive types are keywords. 
B)  Primitive types must appear in all lowercase letters. 
C)  Real numbers contain decimal points. 
D)  Variable name identifiers must begin with a lowercase letter. 
A)  Primitive types are keywords. 
B)  Primitive types must appear in all lowercase letters. 
C)  Real numbers contain decimal points. 
D)  Variable name identifiers must begin with a lowercase letter.

Question 13

Which of the following is not a compilation error?

Accepted Answer

A)  Neglecting to initialize a local variable in a method before it is used. 
B)  Placing a semicolon at the end of the first line of an if statement. 
C)  Omitting the left and right parenthesis for the condition of an if statement. 
D)  All are compilation errors. 
A)  Neglecting to initialize a local variable in a method before it is used. 
B)  Placing a semicolon at the end of the first line of an if statement. 
C)  Omitting the left and right parenthesis for the condition of an if statement. 
D)  All are compilation errors.

Exam 2: Introduction to Java Applications; Inputoutput and Operators

Which is the output of the following statements? System.out.print("Hello "); System.out.println("World");

format specifier ________ is a placeholder for an int value.

Which of the following is a Scanner method for inputting an integer value?

of the following is a relational or equality operator except:

Which of the following is not a Java primitive type?

Which of the following statements would display the phase Java is fun?

End-of-line comments that should be ignored by the compiler are denoted using

Java's predefined classes are grouped into

Which of the following is a variable declaration statement?

Which command compiles the Java source code file Welcome.java?

Given the Java statement int sum = number1 + number2; Which of the following statements is false?

Which of the following statements is false?

Which of the following is not a compilation error?

Introduction to Computers, the Internet and Java

Introduction to Classes, Objects, Methods and Strings

Control Statements: Assignment, and Operators

Control Statements: Logical Operators

Methods: a Deeper Look

Arrays and Arraylists

Classes and Objects: a Deeper Look

Object-Oriented Programming: Inheritance

Object-Oriented Programming: Polymorphism and Interfaces

Exception Handling: a Deeper Look

Javafx Graphical User Interfaces

Javafx Gui

Strings, Characters and Regular Expressions

Files, Inputoutput Streams, Nio and Xml Serialization

Generic Collections

Lambdas and Streams

Recursion

Searching, Sorting and Big O

Generic Classes and Methods: a Deeper Look

Custom Generic Data Structures

Concurrency

Accessing Databases With Jdbc

Swing Gui Components

Graphics and Java 2d

Networking

Java Persistence Api Jpa

Javaserver Faces Web Apps

Javaserver Faces Web Apps

Swing Gui Components

Filters