Lab1, lab2 u16/fns/csc/2069

Lab3Box.java

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+public class Box
+ {
+     double length;
+     double width;
+     double height;
+     double volume;
+     double surfaceArea;
+
+      public double getVolume()
+     {
+       volume = length * width * height;
+       return volume;  
+     }
+
+       public double getSurfaceArea()
+     {
+       surfaceArea = length + width + height;
+       return volume;  
+     }
+ }

Lab3BoxDemo.java

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+import java.util.Scanner;
+ public class BoxDemo
+ {
+
+      public static void main(String[] args)
+     {
+         Box box = new Box();
+
+          Scanner input = new Scanner(System.in);
+
+          System.out.println("Enter the Length");
+         box.length = input.nextDouble();
+
+          System.out.println("Enter the Width");
+         box.width = input.nextDouble();
+
+          System.out.println("Enter the Length");
+         box.height = input.nextDouble();
+
+          System.out.println("The volume is: " + box.getVolume());
+         System.out.println("The volume is: " + box.getSurfaceArea());
+     }
+ }

Lab3EmailBreak.java

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+/*
+  * To change this license header, choose License Headers in Project Properties.
+  * To change this template file, choose Tools | Templates
+  * and open the template in the editor.
+  */
+ package assignment;
+
+  import java.util.Scanner;
+ //Program to break inputed email into username and domain name
+ public class emailBreak {
+ 	public static void main(String[] args) {
+ 		Scanner userInput=new Scanner(System.in);
+ 		String testString,emailAddress;
+ 		boolean check;
+ 		do {
+ 			System.out.println("Please enter your email e.g: example@mail.com");
+ 			emailAddress=userInput.nextLine();
+ 			//String email_regex="[A-Z]+[a-zA-Z_]+@\b([a-zA-Z]+.) {2}\b?.[a-zA-Z]+";
+ 			String email_regex="^[_A-Za-z0-9-\\+]+(\\.[_A-Za-z0-9-]+)*@"+"[A-Za-z0-9-]+(\\.[A-Za-z0-9]+)*(\\.[A-Za-z]{2,})$";
+ 			testString=emailAddress;
+ 			check=testString.matches(email_regex);
+ 			if(!check) {
+ 				System.out.println("The email : \""+emailAddress+ "\" is Invalid\n");
+ 				//return;
+ 			}
+
+  		}while(!check);
+
+  			String[] parts= emailAddress.split("@");
+ 			System.out.println("\nFor the email address: "+emailAddress);
+ 			System.out.println("The user name is   : "+parts[0]+"\nThe domain name is : "+parts[1]);
+ 	}
+ }
+
+

Lab3Triangle.java

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+public class Triangle
+ {
+     int hypotenus;
+     int shortestSide;
+     int a;
+     int b;
+     int c;
+
+      public Triangle(int s1, int s2, int s3)
+     {
+       a = s1;
+       b = s2;
+       c = s3;
+
+         if (a > b && a > c)
+         {
+             hypotenus = a;
+             if (b > c)
+             shortestSide = c;
+             else if (c > b)
+             shortestSide = b;
+         }
+
+          else if (b > a && b > c)
+         {
+             hypotenus = b;
+             if (a > c)
+             shortestSide = c;
+             else if (c > a)
+             shortestSide = a;
+         }
+         else if (c > a && c > b)
+         {
+             hypotenus = c;
+             if (a > b)
+             shortestSide = b;
+             else if (b > a)
+             shortestSide = a;
+         }
+     }
+
+
+      public double getPerimeter()
+     {
+         double perimeter = a + b + c;
+         return perimeter;
+     }
+
+      public double getArea()
+     {
+         //using Heron's Formula
+         double s = (a + b + c)/2;
+         double area = Math.sqrt(s *((s-a) * (s-b) * (s-c)));
+         return area;
+     }
+
+      public double getRatio()
+     {
+         return hypotenus/shortestSide;
+     }
+ }

Lab3TriangleDemo.java

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+import java.util.Scanner;
+ public class TriangleDemo
+ {
+    public static void main(String[] args)
+    {
+        Scanner input = new Scanner(System.in);
+        System.out.println("Please enter the sides of the Triangle\n First Side: ");
+        int firstSide = input.nextInt();
+
+         System.out.println("Second Side: ");
+        int secondSide = input.nextInt();
+
+         System.out.println("Third Side: ");
+        int thirdSide = input.nextInt();
+
+         Triangle triangle = new Triangle(firstSide, secondSide, thirdSide);
+
+         System.out.println("The Perimter of the Triangle is: " + triangle.getPerimeter());
+        System.out.println("The Area of the Triangle is: " + triangle.getArea());
+        System.out.println("The Longest side of the Triangle is: " + triangle.hypotenus);
+        System.out.println("The Shortest side of the Triangle is: " + triangle.shortestSide);
+        System.out.println("The remainder is: " + triangle.getRatio());
+    }
+ }

Lab4Box.java

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+public class Box
+ {
+     private double length, width, height;
+
+      public Box(double boxLength, double boxWidth, double boxHeight)
+     {
+         length = boxLength;
+         width = boxWidth;
+         height = boxHeight;
+     }
+
+      public double volume()
+     {
+         return length * width * height;
+     }
+
+      public double surfaceArea()
+     {
+         return 2 * (length*width + length*height + width*height);
+     }
+ }

Lab4BoxDemo.java

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+import java.util.Scanner;
+ public class BoxDemo
+ {
+   public static void main(String[] args)
+   {
+
+        Box box1 = new Box(20.0, 10.0, 15.0);
+       Box box2 = new Box(6.0, 4.0, 2.0);
+
+
+        System.out.println("The volume of box1 is: " + box1.volume() + " cubic cm");
+       System.out.println("The surface area of box1 is: " + box1.surfaceArea() + " square cm");
+
+        System.out.println("The volume of box2 is: " + box2.volume() + " cubic cm");
+       System.out.println("The surface area of box2 is: " + box2.surfaceArea() + " square cm");
+   }
+ }
+

Lab4Circle.java

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+public class Circle
+ {
+    private static int numberOfCircles = 0;
+
+     private double radius;
+
+     public Circle(double circleRadius)
+    {
+        numberOfCircles++;
+        radius = circleRadius;
+    }
+
+     public double area()
+    {
+        return Math.PI * radius * radius;
+    }
+
+     public double circumference()
+    {
+        return 2 * Math.PI * radius;
+    }
+
+     public static int getNumberOfCircles()
+    {
+        return numberOfCircles;
+    }
+
+      public void setRadius(double rad)
+     {
+         radius = rad;
+     }
+ }

Lab4CircleDemo.java

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+import java.util.Scanner;
+ public class CircleDemo
+ {
+     public static void main(String[] args)
+     {
+         Scanner input = new Scanner(System.in);
+         System.out.println("The number of Circles is: " + Circle.getNumberOfCircles());
+
+          System.out.println("Please enter the radius of the Circle 1: ");
+         Circle circle1 = new Circle(input.nextDouble());
+         System.out.println("The number of circles is: " + circle1.getNumberOfCircles());
+
+          System.out.println("Please enter the radius of the Circle 2: ");
+         Circle circle2 = new Circle(input.nextDouble());
+         System.out.println("The number of circles is: " + circle2.getNumberOfCircles());
+
+          System.out.println("The Area of the first circle is: " + circle1.area());
+         System.out.println("The Perimeter of the first circle is: " + circle1.circumference() + " cm");
+
+          System.out.println("The Area of the second circle is: " + circle2.area());
+         System.out.println("The Perimeter of the second circle is: " + circle2.circumference() + " cm");
+     }
+ }

Lab4Rectangledemo.java

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+import java.util.Scanner;
+ public class RectangleDemo
+ {
+     public static void main(String[] args)
+     {
+         Scanner input = new Scanner(System.in);
+         System.out.println("Please Enter the Length: ");
+         double l = input.nextDouble();
+         System.out.println("Please Enter the Width: ");
+         double w = input.nextDouble();
+         Rectangle rectangle = new Rectangle(l,w);
+         System.out.println("The Area is : " + rectangle.area() + " square cm");
+         System.out.println("The Length of the Rectangle is : " + rectangle.getLength() + " cm");
+         System.out.println("Please enter the new Length of the Rectangle");
+
+          rectangle.setLength(input.nextDouble());
+         System.out.println("The new Length of the Rectangle is : " + rectangle.getLength() + " cm");
+         System.out.println("The new Area of the Rectangle is: " + rectangle.area());
+
+      }
+ }

Lab4Student.java

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+public class Student
+ {
+     private String name;
+     private int iDNumber;
+     private double quiz1, quiz2, quiz3; 
+
+      public Student(String sName, int id, double firstQuiz, double secondQuiz, double thirdQuiz)
+     {
+         name = sName;
+         iDNumber = id;
+         quiz1 = firstQuiz;
+         quiz2 = secondQuiz;
+         quiz3 = thirdQuiz;
+     }
+
+      public String getName()
+     {
+         return name;
+     }
+
+      public int getId()
+     {
+         return iDNumber;
+     }
+
+      public void getQuiz()
+     {
+         System.out.println("Quiz1 = " + quiz1);
+         System.out.println("Quiz2 = " + quiz2);
+         System.out.println("Quiz3 = " + quiz3);
+     }
+
+      public void setQuizOne(double quizOne)
+     {
+         quiz1 = quizOne;
+     }
+
+      public void setQuizTwo(double quizTwo)
+     {
+         quiz2 = quizTwo;
+     }
+
+      public void setQuizThree(double quizThree)
+     {
+         quiz3 = quizThree;
+     }
+
+      public double average()
+     {
+         return (quiz1 + quiz2 + quiz3)/3;
+     }
+
+      public void printDetails()
+     {
+
+          getName();
+         getId();
+         getQuiz();
+         average();
+     }
+ }

Lab4studentdemo.java

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+import java.util.Scanner;
+ public class StudentDemo
+ {
+
+      public static void main(String[] args)
+     {
+         Scanner input = new Scanner(System.in);
+         System.out.println("Please enter your name");
+         String name = input.nextLine();
+
+          System.out.println("Please enter your ID");
+         int id = input.nextInt();
+
+          System.out.println("Please enter your Quiz Grades");
+         System.out.println("Quiz 1: ");
+         double q1 = input.nextInt();
+
+          System.out.println("Quiz 2: ");
+         double q2 = input.nextInt();
+
+          System.out.println("Quiz 3: ");
+         double q3 = input.nextInt();
+
+          Student student = new Student(name, id, q1, q2, q3);
+
+          student.printDetails();
+
+          System.out.println("Enter new grade for quiz 3: ");
+         student.setQuizThree(input.nextDouble());
+
+          student.printDetails();
+
+      }
+ }