Java Assessment Codes.txt

//Palindrome Number
/*import java.util.Scanner;
class HelloWorld {
    public static void main(String[] args) {
        Scanner myObj = new Scanner(System.in);
        int a =myObj.nextInt();
        int s=0;
        for(int i=a;i>0;i=i/10)
        {
            int n=i%10;
            s=s*10+n;
        }
        if(s==a)
        System.out.println("Yes, its a palindrome");
        else
        System.out.println("No");
    }
}*/
//To check for leap year
/*import java.util.Scanner;
class HelloWorld {
    public static void main(String[] args) {
        Scanner myObj = new Scanner(System.in);
        int a =myObj.nextInt();
        if(a%4==0)
        {  if(a%100!=0)
            {
                System.out.println("Yes, its a leap");
            }
            else
            {
                if(a%400==0)
                System.out.println("Yes, its a leap");
                else
                System.out.println("No not a leap year");
            }
        }
        else
        System.out.println("No not a leap year");
    }
}
*/
//Check for prime
/*
import java.util.Scanner;
class HelloWorld {
    public static void main(String[] args) {
        Scanner myObj = new Scanner(System.in);
        int a =myObj.nextInt();
        int c=0;
        for(int i=a;i>0;i--)
        {
            if(a%i==0)
            c++;
        }
        if(c>2)
        { 
                System.out.println("Its a composite.");
            }
            else
            {
                System.out.println("Its a prime.");
            }
}
}
*/
//Reverse a string
/*
import java.util.Scanner;
class HelloWorld {
    public static void main(String[] args) {
        Scanner myObj = new Scanner(System.in);
        String a =myObj.nextLine();
        String b="";
        
        for(int i=0;i<=a.length()-1;i++)
        {
            char temp = a.charAt(i);
            b=temp+b;
            
        }
                System.out.println(b);
}
}
*/
//Print lowercase letters
/*
import java.util.Scanner;
class HelloWorld {
    public static void main(String[] args) {
        Scanner myObj = new Scanner(System.in);
        String a =myObj.nextLine();
        String b ="";
        for(int i=0;i<=a.length()-1;i++)
        {
            char temp = a.charAt(i);
            int n=temp;
            if(n>=97 && n<=122)
            b=b+temp;
        }
                System.out.println(b);
}
}
*/
// String Concatenations
/*
import java.util.Scanner;
class HelloWorld {
    public static void main(String[] args) {
        Scanner myObj = new Scanner(System.in);
        String a= myObj.nextLine();
        String b= myObj.nextLine();
                System.out.println(a.concat(" "+b));
}
}
*/
//Reverse a number
/*
import java.util.Scanner;
class HelloWorld {
    public static void main(String[] args) {
        Scanner myObj = new Scanner(System.in);
        int a = myObj.nextInt();
        int s = 0;
        for(int i=a;i>0;i=i/10)
        {
            int n=i%10;
            s=s*10+n;
        }
        System.out.println(s);
    }
}
*/
//Multilevel Inheritance + Constructor overloading
/*
class Grandparent {
    public  void Grandparent() {
        System.out.println("Grandparents are here");
    }
    public  void Grandparent(int b) {
        System.out.println(b+" grandparents are here");
    }
    
}

class parent extends Grandparent {
    public void parent (){
        System.out.println("parents are here");
    }
    public void parent(int a) {
        System.out.println(a+" parents are here");
    }
}
class child extends parent {
     public void test1() {
        System.out.println("children are here");
    }
    public static void main(String[] args) {
        child ref1= new child();
        ref1.parent();
        ref1.parent(7);
        ref1.Grandparent();
        ref1.Grandparent(9);
    }
}
*/
Inheritance Exercises:
//Exercise-1
/*class animal{
    public void makesound(){
        System.out.println("Animal Sounds");
    }
}
class cat extends animal {
    public void makesound(){
        System.out.println("Bark sounds");
    }
    public static void main(String[] args){
        animal kk=new animal();
        kk.makesound();
        cat kitty = new cat();
        kitty.makesound();
    }
}*/
//Exercise-2
/*
class vehicle{
    public void drive(){
        System.out.println("Skrrt Skrrt");
    }
}
class car extends vehicle {
    public void drive(){
        System.out.println("Repairing a car");
    }
    public static void main(String[] args){
        vehicle kk=new vehicle();
        kk.drive();
        car britney = new car();
        britney.drive();
    }
}*/
//Exercise-3
/*
class shape{
    public void getArea(){
        System.out.println("Area");
    }
}
class rectangle extends shape {
    public void getArea(int a, int b){
        System.out.println("Area is "+(a*b));
    }
    public static void main(String[] args){
        shape kk=new shape();
        kk.getArea();
        rectangle kitty = new rectangle();
        kitty.getArea(8,9);
    }
}*/
//Exercise-4
/*class employee{
    public void work(){
        System.out.println("Employee's work is to help org.");
    }
    public void getSalary(){
        System.out.println("The avg. salary is 8 LPA");
    }
    
}
class HR extends employee {
    public void work(){
        System.out.println("HR employee work is to manage the work relations amoungst the employees in workplace");
    }
    public void addEmployee(){
        System.out.println("Welcome David our new employee whose managing the stationary");
    }
    public static void main(String[] args){
        employee kk=new employee();
        kk.work();
        kk.getSalary();
        HR kitty = new HR();
        kitty.addEmployee();
        kitty.work();
        kitty.getSalary();
    }
}*/
//Exercise-5
/*class bankAccount{
    int balance=0;
    public void bankAccount(int a)
    {
        balance=a;
    }
    public int balance()
    {
        return this.balance;
    }
    public void deposit(int a){
        balance=balance+a;
        System.out.println("New balance " + balance);
    }
    public void withdraw(int b){
        balance=balance-b;
        System.out.println("New balance " - balance);
    }
}
class SavingsAccount extends bankAccount {
    public void withdraw(int a){
        int temp=balance();
        if(temp-a>=0)
        {
            balance=balance-a;
            System.out.println("New balance " + balance);
        }
        else
        System.out.println("Insufficient balance ");
    }
    
    public static void main(String[] args){
        bankAccount bk=new bankAccount();
        bk.deposit(400);
        bk.withdraw(350);
        SavingsAccount kt = new SavingsAccount();
        kt.deposit(2400);
        kt.withdraw(700);
        kt.withdraw(1800);
    }
}*/
//Exercise-6
/*class animal{
    public void move(){
        System.out.println("Animal moves");
    }
}
class cheetah extends animal {
    public void move(){
        System.out.println("cheetah runs");
    }
    public static void main(String[] args){
        animal kk=new animal();
        kk.move();
        cheetah kitty = new cheetah();
        kitty.move();
    }
}*/
//Exercise-7
/*class person{
    public void getfirstName(){
        System.out.println("First Name");
    }
    public void getlastName(){
        System.out.println("Last Name");
    }
}
class employee extends person{
    int employeeID;
    String job;
    public void employee(int a){
        employeeID=a;
    }
    public void employee(String s){
        job=s;
    }
    public void getemployeeID(){
        System.out.println("Employee ID: "+employeeID);
    }
    public void getlastName(){
        System.out.println("Last Name "+job);
    }
    public static void main(String[] args){
        person kk=new person();
        kk.getfirstName();
        kk.getlastName();
        employee kitty = new employee();
        kitty.employee(123);
        kitty.employee("Manager");
        kitty.getemployeeID();
        kitty.getlastName();
    }
}*/
//Exercise-8
/*class shape{
    public void getArea(){
        System.out.println("Area");
    }
    public void getPerimeter(){
        System.out.println("Perimeter");
    }
}
class circle extends shape {
    public void getArea(int a){
        System.out.println("Area is "+(a*a*3.14));
    }
    public void getPerimeter(int a){
        System.out.println("Perimeter is "+(2*a*3.14));
    }
    public static void main(String[] args){
        shape kk=new shape();
        kk.getArea();
        kk.getPerimeter();
        circle kitty = new circle();
        kitty.getArea(4);
        kitty.getPerimeter(4);
    }
}*/