CISC115 FInal Exam Review Questions

Java is a

high level language

The software used to enter Java program statements into a computer is called a

a text editor or IDE

Windows 7, UNIX, and LINUX are examples of

operating systems

The software that converts a java source program to a low-level bytecode program is

a compiler

Comments in Java

all of these

In developing a program, writing the Java code is done after

writing the algorithm

Syntax and logic errors are detected as follows

syntax errors are caught by the compiler; logic errors are caught by the programmer

A prompt is a message which

directs a person to enter something from the terminal

A programmer-defined identifier whose data value is expected to change during the program’s execution is a

variable

A semicolon missing at the end of a java statement is a

syntax error

The computer really only understands

Binary

The inclusion of main() in a Java program is

always necessary

Which variable name is syntactically correct in java?

OakStreet

Which of the following is NOT a Java primitive data type?

String

What is the output from this code?
int x = 0;

System.out.print(x++);

0

Evaluate the following expression using the precedence of arithmetic operators used by the Java language:

10 - 2 * 4 + 6 / 2

5

Evaluate the following expression:
x = 7 % (5/2)

1

 Looping is a process that can be controlled by

both a and b

The primary basic control structures in a structured language are

Sequence, selection, repetition, invocation

When the Java compiler interprets a nested if statement, an else is always paired with the closest preceding non-paired if

True

Storing a value in Java is accomplished by

an assignment statement

A group of related items of the same type is best stored in

an array

An if statement’s alternative path is implemented with

else

The Java statement to copy the value stored in inamt to outamt is

Outamt = inamt;

A java expression is/are

variable and/or numbers seperated by operators

Assuming a = 10.6, b=13.9 and c =3,42, what is the value of int (a+b+c)?

27

The result of evaluating the expression X / Y * 3 where X is an integer that contains 10 and Y is an integer that contains 4 is

6

When executing a while loop, the condition test is performed

first

When executing a do-while loop, the condition test is performed

last

Convert the following  statements to Java: If the semester grade is less than 60, the letter is F. 

If the grade is between 60 and 90, the letter is C

If the is over 90, the letter is A

if(grade =60)

letter = ‘F’;

Else if(grade)>=60 && grade <=90)

letter = ‘C’ 

else 

letter=’A’

Which expression listed below could be used to replace the expression if(val <=30) (if val is an int) and not change the behavior of the program

if(val<31)

Consider the following Java program segment

x=1;

while x<6)

System.out.print(x)

After completion of loop

This is an endless loop

The Java statement that could be used to count the number of records processed is

recs = 1 + recs;

Readability of a program is enhanced by

all of these

The subscript of an array can be of any data type

false

Which of the following sets all the elements to a five-element array to the value 9

int [] a = {9,9,9,9,9};

In Java a String variable stores a reference to a collection of characters

true

A data file

is a collection of data stored under a common name on a device other than main memory

Arguments to methods and their corresponding parameters

should logically represent the same information

Sending data to a method is called

passing arguments

Which of the following defines a 20 element array of floating point numbers?

float [] x = new float (20)

To pass an individual element of an array to a method you must specify

the name of the array and the element number as one argument

The set of hexadecimal digits are

0-F

5 + 5 = 10 in

decimal

In the ____ numbering system 77 + 1 = 100

octal

 ___ is used to group four binary digits to make one digit for ease in reading binary notation

hexadecimal

The octal equivalent of the binary number 110101111 is

657

1010 would be a valid number in

all of the above bases

The powers of the base represent the place values in

all of the above bases

The step-by step solution to a problem is called

an algorithm

set loop count to 1

While loop count is less than or equal to 10

read a number

if the number is not greater than 100

square the number

print the number and the square of the number

on a new line

end if

increment loop county by 1

end while

Assume the following data was used

4 5 2 1 100 200 600 5 6 22 50 4 2 1 4 101 99

How many data items would be read from the data supplied?

10

set loop count to 1

While loop count is less than or equal to 10

read a number

if the number is not greater than 100

square the number

print the number and the square of the number

on a new line

end if

increment loop county by 1

end while

Assume the following data was used

4 5 2 1 100 200 600 5 6 22 50 4 2 1 4 101 99

How many lines of output would be generated?

8

set loop count to 1

While loop count is less than or equal to 10

read a number

if the number is not greater than 100

square the number

print the number and the square of the number

on a new line

end if

increment loop county by 1

end while

Assume the following data was used

4 5 2 1 100 200 600 5 6 22 50 4 2 1 4 101 99

The logic indicated that any data item larger than 100 will

be read but not squared if it is within the first 10 items

set loop count to 1

While loop count is less than or equal to 10

read a number

if the number is not greater than 100

square the number

print the number and the square of the number

on a new line

end if

increment loop county by 1

end while

Assume the following data was used

4 5 2 1 100 200 600 5 6 22 50 4 2 1 4 101 99

The above pseudocode is an example of a ___ controlled

a counter

set loop count to 1

While loop count is less than or equal to 10

read a number

if the number is not greater than 100

square the number

print the number and the square of the number

on a new line

end if

increment loop county by 1

end while

Assume the following data was used

4 5 2 1 100 200 600 5 6 22 50 4 2 1 4 101 99

Implementation of this logic would

require the use of selection, sequence, and repitition structures

The byte primitive data type can store

A range of integers from -128 to +127

Given the decimal number 37, the binary equivalent is

100101

The Java code to increment ctr by 1 to 200 is

ctr = 0

while (ctr < 200)

ctr = ctr +1;

Consider the following Java program segment

int count - 0

for (int i = 0; i<3, ++i)

for (int j = 0; j < 6, ++j)

++count;

system.out.print(count)

The output generated by this program is

18

What values of P, Q, and R would yield a result of true for the expression 

P && (!(Q || R))?

true, false, false

Public class test1

{

public static void main(String [] args)
{
Int x = 10

Int y = 20

myfunction(1,2);

System.out.println(“x = “ + x + “ , y = “ y);

X++;

}

Public static void myfunction (int x, int x)
{
System.out.println(“x = “ + x + “ , y = “ y);

}}

The first line of output from the program is

x=1, y=2

Public class test1

{

public static void main(String [] args)
{
Int x = 10

Int y = 20

myfunction(1,2);

System.out.println(“x = “ + x + “ , y = “ y);

X++;

}

Public static void myfunction (int x, int x)
{
System.out.println(“x = “ + x + “ , y = “ y);

}}

The second line of output from the program is

x=10, y=20

Public class test1

{

public static void main(String [] args)
{
Int x = 10

Int y = 20

myfunction(1,2);

System.out.println(“x = “ + x + “ , y = “ y);

X++;

}

Public static void myfunction (int x, int x)
{
System.out.println(“x = “ + x + “ , y = “ y);

}}

Which of the following are arguments passed into

value_a, value_b

Public class test1

{

public static void main(String [] args)
{
Int x = 10

Int y = 20

myfunction(1,2);

System.out.println(“x = “ + x + “ , y = “ y);

X++;

}

Public static void myfunction (int x, int x)
{
System.out.println(“x = “ + x + “ , y = “ y);

}}

If 15.0 were entered for value_a and 2.0 was enetered for value_b, what would the output be?

0.0

Public class test1

{

public static void main(String [] args)
{
Int x = 10

Int y = 20

myfunction(1,2);

System.out.println(“x = “ + x + “ , y = “ y);

X++;

}

Public static void myfunction (int x, int x)
{
System.out.println(“x = “ + x + “ , y = “ y);

}}

If the line x = find_x(value_a, value_b); was replaced with find_x(value_a, value_b_

0.0

Study the flowchart then answer the questions 66 to 70.
The counter-controlled loop indicated in the flowchart could be implemented in Java with ___

the while statement

Study the flowchart then answer the questions 66 to 70.
The variable J is initialized, increment and tested with

a literal or constant

Study the flowchart then answer the questions 66 to 70.
This logic will produce _ lines of output

1

Study the flowchart then answer the questions 66 to 70.
The second loop of this flowchart is actually an example of

finding the largest value

Study the flowchart then answer the questions 66 to 70.
The statement that best indicated the purpose of this flowchart is

determines and prints the largest of five data items

How many times will the while loops be executed

5

What is the maximum number of scores that can be processed by this program

7

At the end of execution, what are the values stored in the array?

[90, 50, 98, 70, 68, 0, 0]

Which of the following best describes what this program does?

prints out the scores in reverse order stored in the array