Lab1 & 2 JAVA, U14/FNS/CSC/018

ASSIGNMENT/Lab3/Box.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;  
+    }
+}

ASSIGNMENT/Lab3/BoxDemo.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());
+    }
+}

ASSIGNMENT/Lab3/Triangle.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;
+    }
+}

ASSIGNMENT/Lab3/TriangleDemo.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());
+   }
+}

ASSIGNMENT/Lab3/emailBreak.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]);
+	}
+}
+
+

ASSIGNMENT/Lab4/BankAccount.java

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+
+public class BankAccount
+{
+    private String accountNumber;
+    private String accountName;
+    private int accountBalance;
+
+    public BankAccount(String number, String name, int balance)
+    {
+        accountNumber = number;
+        accountName = name;
+        accountBalance = balance;
+    }
+
+    public void deposit(int amountToDeposit)
+    {
+
+        accountBalance = accountBalance + amountToDeposit;
+    }
+
+    public void withdraw(int amountToWithdraw)
+    {
+        accountBalance = accountBalance - amountToWithdraw;
+    }
+
+    public int getBalance()
+    {
+        return accountBalance;
+    }
+}

ASSIGNMENT/Lab4/BankAcountDemo.java

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+import java.util.Scanner;
+public class BankAccountDemo
+{
+   public static void main(String[] args)
+   {
+       Scanner input = new Scanner(System.in);
+
+       System.out.println("Enter Account Number: ");
+       String accNo = input.nextLine();
+
+       System.out.println("Enter Customer Name: ");
+       String name = input.nextLine();
+
+       System.out.println("Enter Initial Balance: ");
+       int bal = input.nextInt();
+
+       BankAccount bankAccount = new BankAccount(accNo, name, bal);
+
+       System.out.println("Enter amount to deposit: ");
+       bankAccount.deposit(input.nextInt());
+
+       System.out.println("New balance is: " + bankAccount.getBalance());
+
+       System.out.println("Enter amount to withdraw: ");
+       bankAccount.withdraw(input.nextInt());
+
+       System.out.println("New balance is: " + bankAccount.getBalance() + "\n\n");
+
+
+   }
+}

ASSIGNMENT/Lab4/Box.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);
+    }
+}

ASSIGNMENT/Lab4/BoxDemo.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");
+  }
+}

ASSIGNMENT/Lab4/Circle.java

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+
+ 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;
+    }
+}

ASSIGNMENT/Lab4/CircleDemo.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");
+    }
+}

ASSIGNMENT/Lab4/Rectangle.java

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+
+public class Rectangle
+{
+   private double length, width;
+
+   public Rectangle(double recLength, double recWidth)
+   {
+       length = recLength;
+       width = recWidth;
+   }
+
+   public double area()
+   {
+       return length * width;
+   }
+
+   public double getLength()
+   {
+       return length;
+   }
+
+   public double getWidth()
+   {
+       return width;
+   }
+
+   public void setLength(double newLength)
+   {
+       length = newLength;
+   }
+
+   public void setWidth(double newWidth)
+   {
+       width = newWidth;
+   }
+
+}

ASSIGNMENT/Lab4/RectangleDemo.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());
+
+    }
+}