Question

Java

1) In a game of guessing numbers, one person says, “I’m thinking of a number between 1 and 100.” The other person guesses “50.” The first person replies, “No, the number is less.” The second person then guesses “25,” and so on, until she guesses correctly. Write a program that plays this game. The computer knows the number (a random number between 1 and 100) and the user is the guesser. At the end of the game, the computer displays the number of guesses required by the user to guess the number correctly.

2)Write a program to print the perimeter and area of rectangles using all combinations of heights and widths running from 1 foot to 10 feet in increments of 1 foot. Print the output in headed, formatted columns.

Answer 1

import java.util.Random;
import java.util.Scanner;

public class GuessingGame {

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int mystery;
        int count = 0, guess;
        System.out.println("I'm thinking of a number between 1 and 100.");
        mystery = new Random().nextInt(100) + 1;
        while (true) {
            System.out.print("Enter your guess[1-100]: ");
            guess = in.nextInt();
            count++;
            if (guess == mystery) {
                System.out.println("Correct!");
                break;
            } else if (guess < mystery) {
                System.out.println("Too Low!");
            } else {
                System.out.println("Too High!");
            }
        }
        System.out.println("It took you " + count + " guesses to guess correctly");
    }
}