lab1, U15FNSCSC003

Lab 1/a.java

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+package practicalClass;
+
+//program to display mathematical table
+public class displayTable {
+	public static void main(String[] args) {
+		int mulOne=1,mulTwo=2,mulThree=3,mulFour=4;
+		System.out.println("\t"+mulOne+"\t"+mulTwo+"\t"+mulThree+"\t"+mulFour);
+		for(int i=1;i<5;i++) {			
+			System.out.println(mulOne*i+"\t"+mulOne*i+"\t"+mulTwo*i+"\t"+mulThree*i+"\t"+mulFour*i);
+		}
+	}
+}

Lab 1/b.java

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+package practicalClass;
+
+import java.util.Scanner;
+//program to break file address into file path, file name and its extension
+public class labTwo_addressBreak {
+	public static void main(String[] args) {
+		Scanner file=new Scanner(System.in);
+		String path;
+		boolean check=false;
+		do {
+			System.out.println("Please enter File path: ");
+			path=file.nextLine();
+			if (path.contains("\\") && path.contains(".")) {
+				int index=path.lastIndexOf("\\");
+				int ext=path.lastIndexOf(".");
+				String fileName=path.substring(index+1, ext);
+				String filePath=path.substring(0, index);
+				String fileExt=path.substring(ext+1);
+				System.out.println("\nFor the full name: "+path);
+				System.out.println("Directory: "+filePath+" \nFile name: "+fileName+" \nExtension: "+fileExt);
+				check=true;
+			}
+			else {
+				System.out.println("Invalid Path ");
+			}
+		}while(!check);
+	}
+}

Lab 1/c.java

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+package practicalClass;
+
+import java.util.Scanner;
+//Program to break inputed email into username and domain name
+public class labTwo_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]);
+	}
+}
+

Lab 1/d.java

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+package practicalClass;
+
+//program to carry out sin,cos,tan,abs,exp mathematical functions
+public class labTwo_mathFunction {
+	public static void main(String[] args) {
+		double k;
+		k=2/4*4%3;
+		//converting from degrees to radian
+		double cos=Math.cos(Math.toRadians(30)); 
+		double sin=Math.sin(Math.toRadians(30));
+		double tan=Math.tan(Math.toRadians(30));
+		//********* output *********** 
+		System.out.println("The value of cos 30: "+cos);
+		System.out.println("The value of exp(15): "+Math.exp(15));
+		System.out.println("The value of sin 30: "+sin);
+		System.out.println("The absolute value of k is "+Math.abs(k));
+		System.out.println("The value of tan 30: "+tan);
+	}
+
+}

Lab 1/e.java

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+package practicalClass;
+
+//program to print miles, values of X,Y,Z and also log of a value
+public class labTwo_one {
+	public static void main(String[] args) {
+		//Lab2 question 1(a)
+		double miles=10.5;
+		miles++;
+		System.out.println("The current value of miles is now: "+miles);
+		//Lab2 question 1(b) 
+		double X,Y,Z,d=1.0;
+		int a=1;
+		X=d+ 43 % 5*(23*3%2);
+		Y=1.5 *3 +(++a);
+		Z=3 +(d*d)+4;
+		System.out.println("\n\nX ="+X+"\nY ="+Y+"\nZ ="+Z);
+
+		//Lab2 question 1(c)
+		double R,p=3.758;
+		R=Math.log(p); //R=log(3.758)
+		System.out.println("\n\nR=log(p) \nR ="+R); 
+	}
+
+}

Lab 1/f.java

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+package practicalClass;
+
+//program to display a given pattern
+public class patternDisplay {
+	public static void main(String[] args) {
+		System.out.println("\t*\n\n   *\t     *\n\n*\t*\t*\n\n*\t\t*");
+		System.out.println("\n\n\n*\t*\n\n*\t*\t*\n\n*\t*\n\n*\t*\t*\n\n*\t*");
+		System.out.println("\n\n\n*\t\t*\n\n*\t\t*\n\n*\t\t*\n\n*\t\t*\n\n    * \t   *");
+	}
+
+}

Lab3/Lab3.java

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+
+/**
+ * Write a description of class Lab3 here.
+ * 
+ * @author (MUSA ABUSUFYAN YUSUF) 
+ * @U15/FNS/CSC/003
+ */
+import java.util.Scanner;
+public class Lab3
+{
+    public static void main(String[]arg){
+System.out.println("\nEXERCISES 01 Volume&Surface-area");
+Scanner scann  = new Scanner(System.in);
+System.out.println("Enter the length:");
+double l = scann.nextDouble();
+System.out.println("Enter the width:");
+double w = scann.nextDouble();
+System.out.println("Enter the heigth:");
+double h = scann.nextDouble();
+double volume = (h*w*l);
+double surface = 2*(l*w+l*h+w*h);
+System.out.println("The volume of the box: "+volume);
+System.out.println("The surface area of the box: "+surface);
+System.out.println("\nEXERCISES 02 USERNAME&DOMAIN");
+    Scanner scan  = new Scanner(System.in);
+     String domain,username;
+      System.out.println("Please enter a valid email address");
+       String email = scan.nextLine();   
+        username = email.split("@")[0];
+         domain = email.substring(email.indexOf("@")+1);
+         //username = email.substring(email.indexOf("@")-1);         
+          System.out.println("\nUsername:"+ username); 
+           System.out.println("Domain:"+ domain);
+
+System.out.println("\nEXERCISES 03 Perimeter&Area");
+    Scanner scan1  = new Scanner(System.in);
+    System.out.println("Enter the 1st sides:");
+    int a = scan1.nextInt();
+    System.out.println("Enter the 2nd sides:");
+    int b = scan1.nextInt();
+    System.out.println("Enter the 3rd sides:");
+    int c = scan1.nextInt();
+    double s =(a+b+c)/2;
+    double area = Math.sqrt(s*(s-a)*(s-b)*(s-c)); 
+    System.out.println("The Perimeter of triangle is: "+s);
+    System.out.println("The area of the triangle with the input sides is "+ area+"unit square");
+    if(a>b && a>c){
+    System.out.println("The longest side is: "+a);
+    }else if(b>c){
+    System.out.println("The longest side is: "+b);
+    }else{
+    System.out.println("The longest side is: "+c);
+    }
+
+    if(a<b && a<c){
+    System.out.println("The smallest side is: "+a);
+    }else if(b<c){
+    System.out.println("The smallest side is: "+b);
+    }else{
+    System.out.println("The smallest side is: "+c);
+    }
+
+}
+}

Lab4/BankAccount.java

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+/**
+ * Write a description of BankAccount here.
+ * 
+ * @author (MUSA ABUSUFYAN YUSUF) 
+ * @U15/FNS/CSC/003
+ */
+public class BankAccount
+{
+    // instance variables - replace the example below with your own
+    private int accountNumber;
+    private String customerName;
+    private double balance;
+
+    /**
+     * Constructor for objects of class BankAccount
+     */
+    public BankAccount(int acctNumber, String custName, double bal)
+    {
+        accountNumber=acctNumber;
+        customerName=custName;
+        balance=bal;
+    }
+
+    //method deposit
+    public void deposit(double deposit)
+    {
+        balance+=deposit;
+    }
+    //method withdraw
+    public double withdraw(double withdraw)
+    {
+        balance-=withdraw;
+        return balance;
+    }
+    public double getBalance()
+    {
+        return balance;
+    }
+}

Lab4/BankAccountDemo.java

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+/**
+ * Write a description of class BankAccountDemo here.
+ * 
+ * @author (MUSA ABUSUFYAN YUSUF) 
+ * @U15/FNS/CSC/003
+ */
+import java.util.Scanner;
+public class BankAccountDemo
+{
+    public static void main(String[] args){
+        Scanner bank= new Scanner(System.in);
+        int accountNumber;
+        double balance,withdraw,deposit;
+        String accountName;
+
+        System.out.print("\nEnter Account Number: ");
+        accountNumber=bank.nextInt();
+        bank.nextLine();
+        System.out.print("Enter Customer name: ");
+        accountName=bank.nextLine();
+        System.out.print("Enter initial balance: ");
+        balance=bank.nextDouble();
+        bank.nextLine();
+        BankAccount account= new BankAccount(accountNumber,accountName,balance);
+       // BankAccount account= new BankAccount(accountNumber,accountName,balance);
+
+
+        System.out.print("\nEnter amount to deposit: ");
+        deposit=bank.nextDouble();
+        account.deposit(deposit);
+        System.out.print("New balance is: "+account.getBalance());
+        System.out.print("\n\nEnter amount to withdraw: ");
+        withdraw=bank.nextDouble();
+        account.withdraw(withdraw);
+        System.out.print("New balance is: "+account.getBalance());
+    }
+}

Lab4/Box.java

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+/**
+ * Write a description of class Box here.
+ * 
+ * @author (MUSA BUSUFYAN YUSUF) 
+ * @U15/FNS/CSC/003
+ */
+public class Box {
+private double length , width , height; //instance variables
+public Box(double boxLength , double boxWidth , double boxHeight) { //constructor
+length = boxLength;
+width = boxWidth;
+height = boxHeight;
+}
+public double volume() { //instant methods
+return length * width * height;
+}
+public double surfaceArea() {
+return 2*(length*width + length*height + width*height);
+}
+}

Lab4/BoxDemo.java

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+/**
+ * Write a description of class BoxDemo here.
+ * 
+ * @author (MUSA ABUSUFYAN YUSUF) 
+ * @U15/FNS/CSC/003
+ */
+public class BoxDemo {
+public static void main(String[] args) {
+// Create two Box objects
+Box box1 = new Box(20.0, 10.0, 15.0);
+Box box2 = new Box(6.0, 4.0, 2.0);
+double volume, area;
+// Get and display volume and surface area of box1
+volume = box1.volume();
+area = box1.surfaceArea();
+System.out.println("The volume of box1 is " + volume + " cubic cm");
+System.out.println("The surface area of box1 is "+area+" square cm\n");
+// Get and display volume of surface area box2
+System.out.println("The volume of box2 is " + box2.volume() + " cubic cm");
+System.out.println("The surface area of box2 is "+area+" square cm\n");
+}
+}

Lab4/Circle.java

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+
+/**
+ * Write a description of class Circle here.
+ * 
+ * @author (MUSA ABUSUFYAN YUSUF) 
+ * @U15/FNS/CSC/003
+ */
+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 2.0 * Math.PI * radius;
+}
+public static int getNumberOfCircles() {
+return numberOfCircles;
+}
+}

Lab4/CircleDemo.java

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+
+/**
+ * Write a description of class CircleDemo here.
+ * 
+ * @author (MUSA ABUSUFYAN YUSUF) 
+ * @U15/FNS/CSC/003
+ */
+public class CircleDemo {
+public static void main(String[] args) {
+System.out.println("The number of circles is " + Circle.getNumberOfCircles());
+Circle circle1 = new Circle(8.5);
+System.out.println("The number of circles is " + Circle.getNumberOfCircles());
+Circle circle2 = new Circle(5.0);
+System.out.println("The number of circles is " + Circle.getNumberOfCircles());
+System.out.println("The area of the first circle is \t" + circle1.area() + "square cm");
+System.out.println("The circumference of the first circle is\t" +circle1.circumference() + " cm");
+System.out.println("The area of the second circle is\t" + circle2.area() + "square cm");
+System.out.println("The circumference of the second circle is\t" +circle2.circumference() + " cm\n\n");
+    }
+}

Lab4/Rectangle.java

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+
+/**
+ * Write a description of class Rectangle here.
+ * 
+ * @author (MUSA ABUSUFYAN YUSUF) 
+ * @U15/FNS/CSC/003
+ */
+class Rectangle {
+private double length , width;
+public Rectangle(double rectangleLength , double rectangleWidth) {
+length = rectangleLength;
+width = rectangleWidth;
+}
+public double area() {
+return length * width;
+}
+// Accessor methods
+public double getLength() {
+return length;
+}
+public double getWidth() {
+return width;
+}
+// Mutator methods
+public void setLength(double newLength) {
+length = newLength;
+}
+public void setRectangleWidth(float newWidth) {
+width = newWidth;
+}
+}