Presentatio 3 Home work exersices

package HWpresentation3;

import java.util.Scanner;

public class Exercise1 {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner s = new Scanner(System.in);
		int location = 1, newNum = 0, dig, x, temp;

		System.out.println("Please, Enter a number with at least 5 digits and less than 12 digits? ");
		x = s.nextInt();
		temp = x;

		while (temp > 0) {
			dig = temp % 10; // to get the right most digit
			// if the digit is divisible by 2 then it is even
			if (dig % 2 == 0) {
				newNum = newNum + location * dig;// location set the base 10 of the number
				location = location * 10; // up it by 10 for 100s is 1000
			}
			temp = temp / 10; // cut the last digit of the number
		}
		System.out.println("The number is : " + newNum);

	}
}
package HWpresentation3;

import java.util.Scanner;

public class Exercise2 {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner s = new Scanner(System.in);
		int location = 1, temp, Num1, Num2, dig1, dig2,newNum=0;

		System.out.println("Please, Enter the first number ? ");
		Num1 = s.nextInt();
		System.out.println("Please, Enter the second number ? ");
		Num2 = s.nextInt();
		temp = Num2;
		while (location > 0)
		{
			dig1 = Num2 % 10; // to get the right most digit of num 2
			newNum = newNum + location * dig1;// location set the base 10 of the number
			location = location * 10; // up it by 10 for 100s is 1000
			dig2 = Num1 % 10;// to get the right most digit of num 1
			newNum = newNum + location * dig2;
			location = location * 10; // set the base of the next digit

			Num2 = Num2 / 10; // cut the last digit of the num2
			Num1 = Num1 / 10; // cut the last digit of the num1
		}
	System.out.println("The number is : " +newNum);

	}
}
package HWpresentation3;
import java.util.Scanner;

public class Exercise3 {

		public static void main(String[] args) {
			// TODO Auto-generated method stub
			Scanner s = new Scanner(System.in);
			int  maxDigit=0, Num, curDigit, temp;

			System.out.println("Please, Enter the first number ? ");
			Num = s.nextInt();
			temp = Num;
			while (temp > 0)
			{
				curDigit = temp % 10; // to get the right most digit of num

				if(curDigit > maxDigit) //Check which digit is bigger
				{
					maxDigit = curDigit ;
				}
				temp = temp /10; // Cut the last digit from the number
			}
		System.out.println("The number is : " +maxDigit);

		}
	}
package HWpresentation3;

import java.util.Scanner;

public class Exercise4 {

		public static void main(String[] args) {
			// TODO Auto-generated method stub
			Scanner s = new Scanner(System.in);
			int  temp, Numbase10=0, Num, power=0;

			System.out.println("Please, Enter A Bianary number - Example 1001 ? ");
			Num = s.nextInt();
			while (true)
			{
				if(Num == 0){ // If num of digits = 0 Exit while Else
					break;
			}else
			{
				temp = Num % 10; //get the last digit
				Numbase10 += temp*Math.pow(2,power); //use 2^ power = 0 Times the digit read
				Num = Num / 10; // remove digit
				power++; // add 1 to power next digit 2^1 time Digit
			}
		}

		   	System.out.println("The number is : " +Numbase10); // print the base 10 Number

		}
}
package HWpresentation3;

import java.util.Scanner;

public class Exercise5 {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner s = new Scanner(System.in);
		int temp=0, Num;
		String  DecimalNum = "";
		System.out.println("Please, Enter A Decimal number - Example 0-9 allowed ? ");
		Num = s.nextInt();

		while (Num > 0) {
			temp = Num % 2;
			DecimalNum = temp + DecimalNum;
			Num = Num / 2;
		}
		System.out.println("The Decimal number is : " + (DecimalNum)); // print the base 10 number
	}

}
package HWpresentation3;

import java.util.Scanner;

public class Exercise6 {

	public static void main(String[] args) {
		// TODO Auto-generated method stub

		int base, i, j, k;

		Scanner s = new Scanner(System.in);
		System.out.println("Enter any number of stars for the base :");
		base = s.nextInt();

		for (i = 1; i <= base; i++) { //loop until base entered reached
			for (j = 1; j <= i; j++)//prints the space
				System.out.print(" ");
			for (j = 1; j <= base - i; j++)//prints the stars = base entered  - 1 star
				System.out.print("*");
			System.out.println(); // new Line

		}
	}
}
package HWpresentation3;

import java.util.Scanner;

public class Exercise7 {

	public static void main(String[] args) {
		// TODO Auto-generated method stub

		int rows = 1, base, i, j, k;

		Scanner s = new Scanner(System.in);
		System.out.println("Enter any number of stars for the base :");
		base = s.nextInt();

		for (i = 1; i <= base ; i++) { // prints the first triangle of stars - left
			for (j = 1; j <= i; j++)
				System.out.print("*");

				for (k = 1; k <= (base * 2) - 2 * i; k++) // print the empty spaces
				System.out.print(" ");

		        for (j = 1; j <= i; j++)// Prints the Right stars
					System.out.print("*");

			System.out.println();
		}


	}


}
package HWpresentation3;

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

public class Exercise8 {

	// TODO Auto-generated method stub
	public static void main(String args[]) {
		Random random = new Random();
		Scanner input = new Scanner(System.in);
		int MIN = 1; //Initilize our input from 1 - 100
		int MAX = 100;
		int comp = random.nextInt(MAX - MIN + 1) + MIN; // Computer Randomly choose a number
		int user;
		int guesses = 0; // counter for how many time user gussed
		do {
			System.out.print("Guess a number between 1 and 100: ");// prompt user to try find number Computer selected
			user = input.nextInt();
			guesses++;
			if (user > comp) // check the gussed number
				System.out.println("My number is less than " + user + "."); //prompt user if number gussed smaller
			else if (user < comp)
				System.out.println("My number is greater than " + user + ".");
			else // user got a hit and find the Random number generated by computer
				System.out.println("Well done! " + comp + " was my number! You guessed it in " + guesses + " guesses.");
		} while (user != comp); // Condition found the number

	}

}


package HWpresentation3;

import java.util.Scanner;

public class Exercise9 {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner s = new Scanner(System.in);

		int  col, frame, rows, subF;
		//System.out.println("Enter n the number of squares you wish?");
		// n = s.nextInt();
int n = (int)(Math.random()*10);
System.out.println("The number Randomly selected is d: "+n);
		for (frame = 1; frame <= n; frame++) {
			for (subF = 1; subF <= n; subF++) {
				for (rows = 1; rows <= n; rows++) {
					for (col = 1; col <= n; col++) {
						System.out.print("*");
					}
					System.out.print(" ");
				}
				System.out.println();
			}
			System.out.println();
		}
	}
}