COMP-274
Week 1 Homework Assignment
Week 1 Reading:

Lecture Java and C++ Similarities Chapter 1: Introduction to Computers, Programs, and Java Sections 1.5, 1.6, 1.7, 1.8, 1.9 Chapter 2: Elementary Programming Sections 2.3, 2.7, 2.11, 2.13, 2,15, 2.16, 2.18 Chapter 3: Selections Sections 3.16, 3.17, 3.18, 3.19 Chapter 4: Loops Section 4.10 Chapter 5: Methods Sections 5.2, 5.3, 5.8, 5.9, 5.10, 5.11 Chapter 6: Single Dimensional Arrays Sections 6.1, 6.2, 6.5, 6.6
Create a Word document containing the answers to all the problems given below.

1. What is the Java source filename extension? What is the Java bytecode filename extension?

Java Source filename extension is .java Java Bytecode will be stored in .class filename

2. Write a Java statement to display the string “The value is 100” to a user in a plain dialog box.

import javax.swing.JOptionPane;

public class ValueMessage
{
public static void main (String[] args) { JOptionPane.showMessageDialog(null, “The value is 100”); }
}

3. What is the command you would use to compile the file Addition.java?

Javac

4. What is the command you would use to execute the Addition class?

Java

5. What does a Java class contain that identifies it as a Java application?

A Main Method

public static void main(String args[])

6. Write a Java statement that declares a constant called MAX which has a value of 1000.

Final int MAX = 1000

7. How do C++ chars differ from Java chars?

The char in C++ is an 8-bit type that uses the ASCII character set while Java is a 16-bit type that uses the Unicode character set.

8. Given a double variable called dval, write a single Java statement to prompt the user