Computer Science I Midterm

What is the file extension of a compiled Java program?

1. .exe

2. .class

3. .jar

4. jpg

.class

Which one of these is not an application?

1. InteliJ

2. Linux

3. Excel

4. Firefox

Linux

What is the file extension for a Java source code file?

1. .java

2. .exe

3. .class

4. .jar

5. .jpg

.java

Which one of these is not a programming language?

1. C++

2. Python

3. Fortran

4. Java

5. Windows

Windows

A binary number ending with two 0’s

1. cannot tell

2. is not a multiple of 4

3. is a multiple of 4

Is a multiple of 4

1010₂ is what in hexadecimal?

1. 0xAA

2. 0xB

3. 0xA

4. 0xF

0xA

Which one of these is not an object-oriented programming language (OOP)?

1. C

2. Java

3. C++

4. Python

5. Small Talk

C

Which one of these is not an operating system?

1. Microsoft Windows

2. Android

3. Linux

4. Java

5. MacOS

Java

A binary number ending with a one

1. is even

2. is odd

3. is negative

4. cannot tell

is odd

In a network, the computers providing services to the other computers are called

1. servers

2. laptops

3. clients

servers

The hex digit for A is

1. 15

2. 11

3. 10₂

4. 10

10

Using four bits, the largest positive binary number we can represent is 1111.

1. true

2. false

true

Given three declared and initialized int variables a, b, and c, which of the following is a valid Java statement?

1. a = b;

2. a * b = 12;

3. b = 8.7;

4. a + b = 8;

5. c = a / 2.3;

a = b;

What is the output of this code:

int a = 13 % 5;

System.out.println(a);

1. 2.6

2. 2.0

3. 3

4. 3.6

5. 2

3

What is the output of this code:
double a = (int) 12.0 / 5;

System.out.println(a);

1. 2.4

2. 2

3. 0.2

4. 2.000000000000

5. 2.0

2.0