31carlton7 / apcs-codehs Goto Github PK

View Code? Open in Web Editor NEW

94.0 7.0 66.0 121 KB

Answers for all units of the APCS CodeHS course.

License: MIT License

Java 100.00%

java apcs codehs

apcs-codehs's Introduction

AP Computer Science A - CodeHS

This repository contains all the answers for units 1 - 10 in the APCSA CodeHS Java course. Be sure to leave a star 🌟

NOTICE: The answers from this repository ~~will be taken down~~ ARE BACK!

Common Answers

If an assignment has 2 or more files...

If an assignment has 2 or more files required, the individual file will be denoted as such:

File.name:
----------
// Code...

If an assignment has a prefix of `M-`...

If an assignment has a prefix of M- it's an actual school project, not a CodeHS assignment and can be ignored.

WARNING

It is recommended that you attempt to solve the problems by yourself before using the work provided here so you can learn from your mistakes. Try to use this only to review/compare your own work, or if you are very stuck on a problem.

Completed Units

Socials

Let me know if you found these helpful or need assistance!

Instagram: @31Carlton7
LinkedIn: @Carlton Aikins

apcs-codehs's People

Contributors

Stargazers

Watchers

apcs-codehs's Issues

4.4.7 is not correctly done

Exercise 4.4.7 "Make a Tree" is not done correctly, CodeHS wants it to be done with For loops.

Unit 5.4 A different dragon not working

9.7.9 twod-array-tester.java Has An Issue

There is an issue in the "TwoDArray.java" that causes the "Testing unequal integer arrays" test case on CodeHS to fail. The problem is that the code does NOT use the row/column length of the smaller 2D array, instead always just using the array from the private variable myArray- which causes an OutOfBounds Error when the other array is smaller. Here is a fixed version of the code for TwoDArray.java:

public class TwoDArray {

    private Object[][] myArray;
    
    public TwoDArray(Object[][] input)
    {
        myArray = input;
    }
    
    public boolean equals(Object[][] other)
    {
//fixed ↓
        int smallerRow = 0;
        if (myArray.length <= other.length)
            smallerRow = myArray.length;
        else 
            smallerRow = other.length;
        int smallerCol = 0;
        if (myArray[0].length <= other[0].length)
            smallerCol = myArray[0].length;
        else 
            smallerCol = other[0].length;
//fixed ↑
        for (int i = 0; i < smallerRow; i++)
        {
            for (int j = 0; j < smallerCol; j++)
            {
                if (!myArray[i][j].equals(other[i][j])) 
                {
                    return false;
                }
            }
        }
        return true;
    }
}

Typo in README

There's a typo in the README.md file