MyGuessNum

//MyGuess allows the computer guess a random number that the user is thinking of. General algorithm is based
// of the binary search algorithm. The algorithm is made so that the computer is able to guess the user's number in under 10 tries.

import java.util.*;
public class MyGuessNum {
  
  // computer generates a random number and passes it to method guessNumber()
	
	public static void main(String[] args) {
		Random rand = new Random();
		System.out.println("Think of an integer between 1 and 1000.");
		int randomNumber = rand.nextInt(1000) + 1; // computer chooses random number between 1-1000 (inclusive)
		System.out.println(randomNumber);
		System.out.println("Is this value too high (1), too low (2), or correct (3)? (Type in numbers for command.)");
		guessNumber(randomNumber);
	}
	
	//  The user tells the computer if its initial guess is too high, too low, or correct. The computer
	// then readjusts its guessing range based on the users response.
	
	public static void guessNumber(int randomNumber){
	Scanner console = new Scanner(System.in);
	Random rand = new Random();
	int input = console.nextInt();
	int max = 500;								// establishes initial max value at the median of the guessing range
	int min = 0;								// establishes initial min value
	int count = 0;								// establishes counter
	do {
		if (input == 1) {						// value too high
			max = randomNumber;					// number is now max value
			randomNumber=rand.nextInt((max-min) + 1) + min;	// guessing range is altered
			System.out.println(randomNumber);
			System.out.println("Is this value too high (1), too low (2), or correct (3)?");
			input = console.nextInt();
		} else if (input == 2) {				// value too low
			min = randomNumber;					// number is now min value
			randomNumber=rand.nextInt((max-min) + 1) + min;		//guessing range is altered
			System.out.println(randomNumber);
			System.out.println("Is this value too high (1), too low (2), or correct (3)?");
			input = console.nextInt();
		} else if (input == 3) {				// value is correct
			System.out.println(randomNumber + " is your number!");
		} else {
			System.out.println("Incorrect input value.");
		}
		count++; // counter is increased each loop
	} while (input != 3); // loop continues until the value is correct
	System.out.println("It took " + count + " guesses to guess this value.");
	}
}