LabTwo

src/lab/two/One.java

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+package lab.two;
+
+import java.util.Scanner;
+
+public class One {
+
+	public static void main(String[] args) {
+		 Scanner input = new Scanner( System.in );
+		 int num1;
+		 int num2;
+		 int num3;
+		 int sum;
+		 int product;
+		 int average;
+		 System.out.println( "Enter first integer:" );
+		 num1 = input.nextInt();
+		 System.out.println( "Enter second integer:" );
+		 num2 =  input.nextInt();
+		 System.out.println( "Enter third integer: ");
+		 num3 = input.nextInt();
+		 input.close();
+		 sum = num1 + num2 + num3;
+		 product = num1 * num2 * num3;
+		 average = ( num1 + num2 + num3 ) / 3;
+		 System.out.printf( "The sum is %d\nThe product is %d\nThe average is %d\n", sum,
+		  product, average );
+		 
+
+	}
+
+}

src/lab/two/Three.java

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+package lab.two;
+
+import java.util.Scanner;
+
+public class Three {
+
+	public static void main(String[] args) {
+		Scanner in = new Scanner(System.in);
+		System.out.print("Enter integer: ");
+		int number = 0;
+		try {
+			number = in.nextInt();
+		} 
+		catch (Exception e) {
+			System.out.println("incorrect input.");
+			System.exit(1);
+		}
+		if (isEven(number)) {
+			System.out.println("Number is Even");
+		}
+		else System.out.println("Number is Odd");
+	}
+	
+	public static boolean isEven(int number) {
+		if (number % 2 == 0) {
+			return true;
+		}
+		else return false;
+	}
+
+}

src/lab/two/Two.java

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+package lab.two;
+
+import java.util.Scanner;
+
+public class Two {
+
+	public static void main(String[] args) {
+		Scanner in = new Scanner(System.in);
+		int r = 0;
+		double circumference, area, diameter;
+		System.out.print("Enter the radius: ");
+		try 
+		{
+			r = in.nextInt();
+			
+		} 
+		catch (Exception e) 
+		{
+			System.out.println("incorrect input.");
+			System.exit(1);
+		}
+		
+		diameter = 2*r;
+		circumference = 2*Math.PI*r;
+		area = Math.PI*r*r;
+
+		String format = "Diameter is %.0f%n"
+				  + "Area is %f%n"
+				  + "Circimfrance is %f%n";
+		System.out.printf(format, diameter, area, circumference);
+		
+	}
+
+}