Hacks for Rachit's group • 7 min read

Hack #1

import java.util.*;
public class Main{
    public static ArrayList<Integer> numbers = new ArrayList<Integer>();
    public static void AppendArray(int number){
        numbers.add(number);
    }
    public static int callNum(int num){
        return numbers.get(num);
    }
    public static void main(String[] args){
        numbers.add(5);
        Scanner input = new Scanner(System.in);
        int number = input.nextInt();
        AppendArray(number);
        int index = input.nextInt();
        System.out.println(callNum(index));
    
    }
}
Main.main(null);

5

Hack #2

import java.util.*;

public class GuessingGame {
    private static Random random = new Random();
    private int base;
    private int exponent;

    public GuessingGame() {
        base = random.nextInt(9);
        exponent = random.nextInt(4);
    }

    public void play() {
        Scanner input = new Scanner(System.in);
        int guessBase;
        int guessExponent;

        System.out.println("Hello Stranger! Welcome to my Guessing Game!");
        System.out.println("I've selected a random number taken to a random exponent.");
        System.out.println("Guess the number and exponent! GOOD LUCK!");

        do {
            System.out.println("Guess the base; then the exponent");
            guessBase = input.nextInt();
            guessExponent = input.nextInt();

            if (guessBase == base && guessExponent == exponent) {
                System.out.println("You are correct.");
            } else {
                giveHint(guessBase, guessExponent);
            }

        } while (guessBase != base || guessExponent != exponent);

        input.close();
    }

    private void giveHint(int guessBase, int guessExponent) {
        if (guessBase < base) {
            System.out.println("Rip! Try a larger base.");
        } else if (guessBase > base) {
            System.out.println("Rip! Try a smaller base.");
        } else {
            System.out.println("Base is correct!");
        if (guessExponent < exponent) {
                System.out.println("Rip! Try a larger exponent.");
            } else if (guessExponent > exponent) {
                System.out.println("Rip! Try a smaller exponent.");
            } else {
                System.out.println("Exponent is correct!");
            }
        }
    }

    public static void main(String[] args) {
        GuessingGame game = new GuessingGame();
        game.play();
    }
}
GuessingGame.main(null);

Hack #3

 class Person{
    public String firstname;
    public String lastname;
    public int age;
    public double salary;
    public boolean tall;
    public Person(String firstName, String lastName, int Age, double Salary, boolean Tall){
        this.firstname = firstName;
        this.lastname = lastName;
        this.age = Age;
        this.salary = Salary;
        this.tall = Tall;
    }
    public String Name(){
        return this.firstname + " "+this.lastname;
    }
    public int age(){
        return this.age;
    }
    public double salary(){
        return this.salary;
    }
    public boolean height(){
        if (this.tall){
            return true;
        }
        else{
            return false;
        }
    }
}
public class Main{
    public static void main(String[] args){
        Person tom = new Person("Tom","Anderson",20,10000,false);
        System.out.println("Name: " + tom.Name());
        System.out.println("Age: " + tom.age());
        System.out.println("I have $"+ tom.salary);
        System.out.println("Me tall: " + tom.tall);
    }
}
Main.main(null);

Name: Tom Anderson
Age: 20
I have $10000.0
Me tall: false

Hack #4

import java.lang.String;
public class NameFinder{
    public static String firstName(String name){
        String firstName = "";        
        //First name
        int spaceIndex = name.indexOf(" ");
        for (int i = 0; i<spaceIndex;i++){
            firstName += name.charAt(i);
        }
        return firstName;
    }
    public static String lastName(String name){
        String lastName = "";        
        //Last name
        int spaceIndex = name.indexOf(" ");
        for (int i = spaceIndex+1; i<name.length(); i++){
            lastName += name.charAt(i);
        }
        return lastName;
    }
    public static void main(String[] args){
        String name = "Ratchet Hammer";
        System.out.println(firstName(name));
        System.out.println(lastName(name));
    }
}
NameFinder.main(null);

Ratchet
Hammer