Lab01, U14/FNS/CSC/082

AddressBreak.java

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+
+/**
+ * Write a description of class AddressBreak here.
+ *
+ * @author (your name)
+ * @version (a version number or a date)
+ */
+import java.util.Scanner;
+public class AddressBreak
+{
+   //Program that breaks a given full file name into path, filename and extension.
+    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);
+    }
+}

ArithmeticProgression.java

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+/**
+ * Write a description of class Lab3 here.
+ * 
+ * @ jesse john zubakpere u15/fns/csc/082
+ */
+import java.util.Scanner;
+public class ArithmeticProgression
+{ 
+   public static void main(String [] args){
+       int a,d,n;
+       System.out.println("Assignment1\n");
+       Scanner input = new Scanner(System.in);
+       System.out.println("enter the first term of an arithmetic progression (AP)\n");
+       a = input.nextInt();
+
+       System.out.println("enter the common difference of an arithmetic progression (AP)\n");
+       d = input.nextInt();
+
+       System.out.println("enter the number of terms of an arithmetic progression (AP)\n");
+       n = input.nextInt();
+     do{
+       System.out.println(" invalid input, n cannot be less than 1,Please enter a valid input");
+       n = input.nextInt();
+    }
+         while(n<1) ;
+       double Tn= a+(n-1)*d;
+        double Sn = (n/2)*(a+Tn);
+        System.out.println("The nth term of the series is: "+Tn);
+        System.out.println(" The sum of the first n terms is: "+Sn);
+
+}
+}

Author.java

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+/**
+ * Write a description of class Lab3 here.
+ * 
+ * @ jesse john zubakpere u15/fns/csc/082
+ */
+public class Author {
+   private String name;
+   private String email;
+   private char gender;   
+   public Author(String name, String email, char gender) {
+      this.name = name;
+      this.email = email;
+      this.gender = gender;
+   }
+   public String getName() {
+      return name;
+   }
+   public char getGender() {
+      return gender;
+   }
+   public String getEmail() {
+      return email;
+   }
+   public void setEmail(String email) {
+      this.email = email;
+   }
+   public String toString() {
+      return name + " (" + gender + ") at " + email;
+   }
+}

BankAccount.java

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+/**
+ * Write a description of class Lab3 here.
+ * 
+ * @ jesse john zubakpere u15/fns/csc/082
+ */
+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;
+    }
+}

BankAccountDemo.java

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+/**
+ * Write a description of class Lab3 here.
+ * 
+ * @ jesse john zubakpere u15/fns/csc/082
+ */
+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());
+    }
+}

Box.java

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+/**
+ * Write a description of class Lab3 here.
+ * 
+ * @ jesse john zubakpere u15/fns/csc/082
+ */
+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);
+}
+}

BoxDemo.java

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+/**
+ * Write a description of class Lab3 here.
+ * 
+ * @ jesse john zubakpere u15/fns/csc/082
+ */
+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");
+}
+}

BoxDemoModify.java

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+/**
+ * Write a description of class Lab3 here.
+ * 
+ * @ jesse john zubakpere u15/fns/csc/082
+ */
+
+public class BoxDemoModify
+{
+   public static void main(String[] args){
+           // Create two Box obj ects
+    BoxModify box1 = new BoxModify(20.0, 10.0, 15.0);
+    BoxModify box2 = new BoxModify(box1);
+    BoxModify box3 = new BoxModify(6.0);
+    double volume, area;
+    //double volume, area;         
+    // Get and display volume and surface area of box1
+    volume = box1.volume();
+    area = box1.surfaceArea();
+    System.out.println("Box 1 is " + box1);
+    System.out.println("Box 2 is "+box2);
+    System.out.println("Box 3 is "+box3);
+    // Get and display volume of surface area box2
+    System.out.println("\nThe volume of box2 is " + box2.volume() + " cubic cm");
+    System.out.println("The surface area of box2 is "+area+" square cm\n");
+   }
+}

BoxModify.java

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+/**
+ * Write a description of class Lab3 here.
+ * 
+ * @ jesse john zubakpere u15/fns/csc/082
+ */
+
+public class BoxModify
+{
+        private double length , width , height; //instance variables
+        public BoxModify(double boxLength , double boxWidth , double boxHeight) { //constructor
+        length = boxLength;
+        width = boxWidth;
+        height = boxHeight;
+        }
+        public BoxModify(BoxModify obj) { //constructor
+        length = obj.length;
+        width = obj.width;
+        height = obj.height;
+        }
+        public BoxModify(double boxLength) { //constructor
+        length = boxLength;
+        width = boxLength;
+        height = boxLength;
+        }
+        public double volume() { //instant methods
+        return length * width * height;
+        }
+        public double surfaceArea() {
+        return 2*(length*width + length*height + width*height);
+        }
+        public double getLength( ){
+            return length;
+        }
+        public double getWidth(){
+            return width;
+        }
+        public double getHeight(){
+            return height;
+        }
+        public String toString() {
+        return "\nLength: "+getLength()+"   Width: "+getWidth()+"   Height:"+getHeight();
+    }
+}

Circle.java

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+/**
+ * Write a description of class Lab3 here.
+ * 
+ * @ jesse john zubakpere u15/fns/csc/082
+ */
+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;
+}
+}

CircleDemo.java

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+/**
+ * Write a description of class Lab3 here.
+ * 
+ * @ jesse john zubakpere u15/fns/csc/082
+ */
+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");
+    }
+}

Employee1.java

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+/**
+ * Write a description of class Lab3 here.
+ * 
+ * @ jesse john zubakpere u15/fns/csc/082
+ */
+
+public class Employee1
+{
+    private int iDNumber;
+    private String name;
+    private double salary;
+    public Employee1(int iD, String employeeName, double employeeSalary){
+    iDNumber = iD;
+    name = employeeName;
+    salary = employeeSalary;
+    }
+    public Employee1(String employeeName, int iD, double employeeSalary){
+    iDNumber = iD;
+    name = employeeName;
+    salary = employeeSalary;
+    }
+    public Employee1(int iD, String employeeName) {
+    iDNumber = iD;
+    name = employeeName;
+    salary = 0.0;
+    }
+    public Employee1(String employeeName, int iD) {
+    iDNumber = iD;
+    name = employeeName;
+    salary = 0.0;
+    }
+    public void setSalary(double employeeSalary) {
+    salary = employeeSalary;
+    }
+    public int getIDNumber(){
+        return iDNumber;
+    }
+    public String getName() {
+    return name;
+    }
+    public double getSalary() {
+    return salary;
+    }
+    public void deductions(double telephoneBills) {
+    salary -= telephoneBills;
+    }
+    public void deductions(double telephoneBills, double medicalBills) {
+    salary -= (telephoneBills + medicalBills);
+    }
+    public void raiseSalary(double percentIncrease) {
+    salary += salary * percentIncrease/100;
+    }
+    public void printDetails() {
+    System.out.println("\nID Number: "+iDNumber+"\nName: "+name+"\nSalary:"
+    +salary) ;
+    }
+}