lab1,U16/FNS/CSC/2087

ArithmeticProgression.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.
+ */
+//MATRIC NUMBER:U16/FNS/CSC/2087;
+//NAME:ABDULLAHI IDRIS;
+package ArithmeticProgression;
+
+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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+/*
+ * 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.
+ */
+//MATRIC NUMBER:U15/FNS/CSC/2087;
+//NAME:Abdullahi idris;
+package TestAuthor;
+
+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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+/*
+ * 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 bankaccount;
+
+/**
+ *
+ * @author hp
+ */
+//MATRIC NUMBER:U16/FNS/CSC/2087
+//NAME:Abdullahi idris
+public class BankAccount {
+private int accountNumber;
+private String customerName;
+private double balance;
+    public BankAccount (int acctNumber, String custName, double bal){
+        accountNumber=acctNumber;
+        customerName=custName;
+        balance=bal;
+    }
+    public void deposit(double deposit){
+        balance+=deposit;
+    }
+    public double withdraw(double withdraw){
+        balance-=withdraw;
+        return balance;
+    }
+    public double getBalance(){
+        return balance;
+    }
+
+
+    }
+
+

BankAccountDemo.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 bankaccountdemo;
+
+/**
+ *
+ * @author hp
+ */
+//MATRIC NUMBER:U16/FNS/CSC/2087
+//NAME:Abdullahi idris
+import java.util.Scanner;
+public class BankAccountDemo {
+
+    /**
+     * @param args the command line arguments
+     */
+    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());
+    }
+}
+
+
+

BoxDemoModify.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.
+ */
+//MATRIC NUMBER:U16/FNS/CSC/2087;
+//NAME:Abdullahi idris;
+package BoxDemoModify;
+
+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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+/*
+ * 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.
+ */
+//MATRIC NUMBER:U16/FNS/CSC/2087;
+//NAME:Abdullahi idris;
+package BoxModify;
+
+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();
+    }
+}

ClosedBox.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.
+ */
+//MATRIC NUMBER:U16/FNS/CSC/2087;
+//NAME:Abdullahi idris;
+package ClosedBox;
+
+import java.util.Scanner;
+import java.io.IOException;
+public class ClosedBox {
+public static void main(String[] args) {
+    Scanner input= new Scanner(System.in);
+    System.out.print("Enter the length:");
+    double length = input.nextDouble();
+    System.out.print("Enter the width:");
+    double width = input.nextDouble();
+    System.out.print("Enter the height:");
+    double height = input.nextDouble();
+    double volume = length * width * height;
+    System.out.println("The volume of the box is:"+volume);
+    double surfacearea = 2*(height*width)+2*(height*length)+2*(width*length);
+   System.out.println("The surface area of the box is:"+surfacearea);
+}
+}

EmailAddress.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.
+ */
+//MATRIC NUMBER:U16/FNS/CSC/2087
+//NAME:Abdullahi idris
+package emailaddress;
+import java.util.Scanner;
+public class EmailAddress {
+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]);
+}
+}
+

Employee1.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.
+ */
+//MATRIC NUMBER:U16/FNS/CSC/2087
+//NAME:Abdullahi idris;
+package Employee1;
+
+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) ;
+    }
+}