Question 1

The problem solving process emphasizes a "first, do-it-by-hand" approach because

Accepted Answer

A)  Pseudocode is not able to capture the subtleties of complex problems. 
B)  it is faster to do computations by hand than to do them by computer. 
C)  this guarantees that programs will be correct. 
D)  if programmers cannot compute a solution by hand, it is unlikely they will be able to write a program that can do it. 
A)  Pseudocode is not able to capture the subtleties of complex problems. 
B)  it is faster to do computations by hand than to do them by computer. 
C)  this guarantees that programs will be correct. 
D)  if programmers cannot compute a solution by hand, it is unlikely they will be able to write a program that can do it.

Question 2

A student's class average can be computed by dividing the number of points they have earned by the number of points possible in the class. Assume the following variables have been declared as shown and given values elsewhere:
Int pointsEarned, pointsPossible;
Double classPercentage;
Which of the following statements will assign the correct percentage average to classPercentage? For example, if pointsEarned is 725 and pointsPossible is 1000, classPercentage should be assigned the value 72.5.

Accepted Answer

A) classPercentage = pointsEarned/pointsPossible * 100.0; 
B) classPercentage = 100 * pointsEarned/pointsPossible; 
C) classPercentage = (100.0 * pointsEarned)/pointsPossible; 
D) classPercentage = (100.0 + pointsEarned)/pointsPossible; 
A) classPercentage = pointsEarned/pointsPossible * 100.0; 
B) classPercentage = 100 * pointsEarned/pointsPossible; 
C) classPercentage = (100.0 * pointsEarned)/pointsPossible; 
D) classPercentage = (100.0 + pointsEarned)/pointsPossible;

Question 3

In an airline reservation system, the number of available seats in an airplane is required. Which data type should be used to store this value?

Accepted Answer

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

Question 4

Which of the following statements is correct about constants?

Accepted Answer

A)  Constants are written using uppercase letters because the compiler ignores constants declared in lowercase letters. 
B)  The data stored inside a final variable can be changed using an assignment statement. 
C)  You can make a variable constant by using the constant reserved word while declaring the variable. 
D)  Variables defined using final make a code snippet more readable and easier to maintain. 
A)  Constants are written using uppercase letters because the compiler ignores constants declared in lowercase letters. 
B)  The data stored inside a final variable can be changed using an assignment statement. 
C)  You can make a variable constant by using the constant reserved word while declaring the variable. 
D)  Variables defined using final make a code snippet more readable and easier to maintain.

Question 5

What is the value of the following expression? 1 % 12

Accepted Answer

A) 1 
B) 0 
C) -11 
D)  This is an error because 12 is greater than 1 
A) 1 
B) 0 
C) -11 
D)  This is an error because 12 is greater than 1

The problem solving process emphasizes a "first, do-it-by-hand" approach because

In an airline reservation system, the number of available seats in an airplane is required. Which data type should be used to store this value?

Which of the following statements is correct about constants?

What is the value of the following expression? 1 % 12

Introduction

Using Objects

Implementing Classes

Decisions

Loops

Arrays and Array Lists

Designing Classes

Inheritance

Interfaces

Inputoutput and Exception Handling

Object-Oriented Design

Recursion

Sorting and Searching

The Java Collections Framework

Basic Data Structures

Tree Structures

Generic Classes

Graphical User Interfaces

Streams and Binary Inputoutput

Multithreading

Internet Networking

Relational Databases

XML

Web Applications

Filters

Exam 4: Fundamental Data Types

The problem solving process emphasizes a "first, do-it-by-hand" approach because

In an airline reservation system, the number of available seats in an airplane is required. Which data type should be used to store this value?

Which of the following statements is correct about constants?

What is the value of the following expression? 1 % 12

Introduction

Using Objects

Implementing Classes

Decisions

Loops

Arrays and Array Lists

Designing Classes

Inheritance

Interfaces

Inputoutput and Exception Handling

Object-Oriented Design

Recursion

Sorting and Searching

The Java Collections Framework

Basic Data Structures

Tree Structures

Generic Classes

Graphical User Interfaces

Streams and Binary Inputoutput

Multithreading

Internet Networking

Relational Databases

XML

Web Applications

Filters