D335 Introduction to Programming in Python (PA study guide 2025) Western Governors University

D335 Introduction to Programming in Python (PA study
guide 2025) Western Governors University

20.01 Practice Lab 1 (Introduction to Java)

INSTRUCTIONS:
Write a program that outputs the pattern shown below, ending with a newline. Each line of the pattern contains 5
characters including whitespace.

OUTPUT:
H H
H H
HHHHH
H H
H H

SOLUTION (in red):

public class Lab {
public static void main(String[] args) {
/* Type your code here. */
System.out.println("H H");
System.out.println("H H");
System.out.println("HHHHH");
System.out.println("H H");
System.out.println("H H");
}
}

WALKTHROUGH:
Just pay attention to how many characters are required on each line and use System.println();




20.02 Practice Lab 2 (Multiplication)

INSTRUCTIONS:
For this lab you will use unit testing to check a null setting using assertions. Use the commented template code
provided to do the following:

Write a program that collects two integer inputs and assigns them to the variables starting_num and multiplier.
Multiply starting_num by multiplier and output the result. Repeat this process two more times, each time
multiplying the previous result by multiplier. The three product outputs should be separated by a whitespace
character, ending with a newline.

,If the input is:
25
the output when starting_num = 2 is: 10
50 250

, SOLUTION (in red):

import java.util.Scanner; public
class LabProgram {
public static void main(String[] args) { Scanner
scnr = new Scanner(System.in);
/* Type your code here. */

int num1 = scnr.nextInt();
int num2 = scnr.nextInt();

int starting_num = num1;
int multiplier = num2;

int result1 = starting_num * multiplier;
int result2 = result1 * multiplier;
int result3 = result2 * multiplier; System.out.println(result1
+ " " + result2 + " " + result3);
}
}

OR

int starting_num = scnr.nextInt(); int
multiplier = scnr.nextInt();

for (int i = 0; i < 3; i++) { result
*= multiplier;
System.out.print(result);

if (i < 2) {
System.out.print(“ “);
}
}
System.out.println();




20.03 Practice Lab 3 (Wedding Tables)
INSTRUCTIONS:
Write a program that calculates the number of full tables for a wedding event, based on the number of expected
guests. Each full table will seat 10 wedding guests.

Collect one integer input and assign it to the variable guests. Using integer division, calculate the total number of
tables that will be filled. The variable tableSize has been declared and initialized and the variables guests and
tablesFilled have been declared in the template code.