/** 
 * Solution to Question#4:
 * 
 * Syntax(or compile-time) error 1: line# 6; name of class is not the same as the name of the file.
 * Syntax(or compile-time) error 2: line# 11; semicolon after "difference" should be a comma. 
 * Syntax(or compile-time) error 3: line# 19; missing semicolon.
 * Syntax(or compile-time) error 4: line# 29; missing string concatenation symbol "+".
 * Semantic(or logical) error 1: line# 23; incorrect operator used to compute difference. should be "-" not "+".
 * Semantic(or logcal) error 2: line# 25; incorrect data conversion. results should be cast to a float.
 *
 */

import java.util.Scanner;

public class Numbers {

	public static void main(String[] args) {
		
		int firstNumber, secondNumber;
		int sum, difference, product;
		float division;
		
		//read input values
		Scanner input = new Scanner(System.in);
		System.out.println("Enter first number: ");
		firstNumber = input.nextInt();
		System.out.println("Enter second number: ");
		secondNumber = input.nextInt();
		
		//perform calculations
		sum = firstNumber + secondNumber;
		difference = firstNumber - secondNumber;
		product = firstNumber * secondNumber;
		division = (float)firstNumber/secondNumber; //assume secondNumber can't be 0
		
		/** display results **/
		System.out.println("The sum is: " + sum);
		System.out.println("The difference is: " + difference);
		System.out.println("The product is: " + product);
		System.out.println("The division is: " + division);

	}

}