Question

THE FOLLOWING PROGRAM IS NEEDED IN JAVA LANGUAGE

Design a class torepresent account, include the following members: -Data Members a)Name of depositor-Stringb)Account Number –intc)Type of account –Boolean d)Balance amount -doublee)AnnualInterestrate -double Methods: -(a)To assign initial values (use constructor)(b)To deposit an amount.(c)TO withdraw amount with the restriction the minimum balance is 50 rs. Ifyouwithdraw amount reduced the balance below 50 then print the error message.(d)Display the name and balance of the account.(e)Get_Monthly_intrestRate() -Return the monthly interestrate whichis nothing but Annualintrestrate/12. Annualinterestrate is in percentage e.g 4.5%(f)Get_Monthly_intrest:-return themonthly interest, it is calculated as balance * Get_Monthly_intrestRate()

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Write a program simple prints “Wonder of the objects” inside the main method. Without using any print statement or concrete methods or dot operators inside the main methods.

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Create a class name stock that contains:-1)A String data field name symbol for the stock_ symbol.2)A string data field name of company3)A double data field name previousCloseingPrice that store the stock price for previous day4)A double data field name currentPrice that store the stock price for the current time5)A method getChangepercent() that return the percentage changed in previousCloseingPrice and currentPrice.e.gstock Symbol is ORCL and stock name = Oracle Carporation , the previousCloseingPrice=34.5 and current change price is 34.35 and display the price change percentage.

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Design a class FAN to represent fan . The class contains:-a.Three constants named Slow, Medium and FAST with the values 1,2 and 3 to denote the FAN Speed.b.A private intdata field named speed that specifies the speed of the fan (Default is Slow)c.A private Boolean data field named ‘on’ that specifies whether the fan is on ( the default is false)d.A private double data field named radius that specifies the radius of the fan )default is 5)e.A string data field named colorthat specifies the colorof the fan (the default is blue)f.Define default constructor g.Method tostring() that returns a string description for the fan. If the Fan is on the method returns the fan speed, color, and radiusin one combined string. If fan is not on the method returns the fan colorand radiusalong with the string “fan is off” in one combined string.h.WAP to creates two FAN objects. Assign maximumspeed, radius 10 , color Yellow and turn it on to the first Object . Assign medium speed,radius 5 , color blue and turn it off to the second objects. Display the object by invoking to string method.

Answer 1

Program code to copy

Fan.java

Fan.java

public class Fan
{
        public static final int SLOW=1,MEDIUM=2,FAST=3; // static final attributes with constant values
        private int speed;
        private boolean f_on;
        private double radius;
        private String color;
        
        Fan()
    {
        speed=SLOW;
        f_on=false;
        radius=5;
        color="blue";
    }
 
        Fan(int speed,double radius,String color,boolean f_on) //Constructor to store values
        {
                this.speed=speed;
                this.radius=radius;
                this.color=color;
                this.f_on=f_on;
        }
 
        public void tostring() // toString method used to return String data of Fan
        {
                if(f_on==true) // Checking Whether Fan is on/off
                {
                        System.out.println("Fan is on \n the speed is ="+speed+"\n the color is ="+color+"\n the radius is ="+radius);
                }
                else
                {
                        System.out.println("Fan is off \n the color of fan is ="+color+"\n the radius of fan is ="+radius);
                }
        }
 
                public static void main(String[] args)
                {
                        Fan obj1 = new Fan(FAST,10,"yellow",true);
                        Fan obj2 = new Fan(MEDIUM,5,"blue",false);
                        obj1.tostring();
                        obj2.tostring();
                }
}

Sample output

EL Problems @ Javadoc Declaration Console X <terminated> Fan [Java Application] C:\Program Files\Java\jre1.8.0_201\bin\javaw.exe (Aug 1, 2020, 12:03:40 AM) Fan is on the speed is = 3 the color is =yellow the radius is = 10.0 Fan is off the color of fan is =blue the radius of fan is =5.0

BankAccount.java

BankAccount.java

import java.io.*;
import java.util.*;
class Bank 
{
        private String nameOfDepositor;
        private int accNum;
        private boolean accType;
        private double bal, AnnualInterestrate;
        void set(String n,int num,boolean acc,double B, double rate) 
        {
                nameOfDepositor=n;accNum=num;accType=acc;bal=B;AnnualInterestrate=rate;
        }
        void deposit(double d) 
        { 
                bal+=d; 
        }
        void withdraw(double w) 
        {
                if(bal>=w && bal-w>50)
                        bal-=w;
                else
                        System.out.println("Insufficient Balance in your account");
        }
        void disp() 
        {
                System.out.println("Name of account Holder is :"+nameOfDepositor);
                System.out.println("Current Balance in your Savings Bank account is :"+bal );
                
        }
        double Get_Monthly_interestRate()
    {
        AnnualInterestrate=((0.01*AnnualInterestrate)/12);
        return AnnualInterestrate;
    }
    void Get_Monthly_interest()
    { 
                System.out.println("Monthly Interest for the available account balance is Rs. "+bal*Get_Monthly_interestRate());
    }
}
        
public class BankAccount 
{
        public static void main(String[] args) throws IOException 
        {
                BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
                Scanner sc=new Scanner(System.in);
                System.out.println("\n*******************WELCOME TO JAVA BANK********************");
                System.out.print("Please enter your name :");
                String s=in.readLine();
                System.out.print("\nPlease enter your account number :");
                int no=Integer.parseInt(in.readLine());
                System.out.print("\nDo you have Savings Account at our branch?");
                boolean ss=sc.nextBoolean();
                if(ss==true)
                {
            System.out.println("You can proceed.... ;) ");
                }
                else
                {
            sc.close();
                }
                System.out.print("\nEnter balance of your account: ");
                double bl=Double.parseDouble(in.readLine());
                System.out.println("Enter Annual Interest Rate in Percentage: ");
                double r=sc.nextDouble();
        
                Bank ob=new Bank();
                ob.set(s,no,ss,bl,r);
                ob.disp();
                System.out.print(" YOU WANT TO WITHDRAW MONEY(Y/N) : ");
                String w=in.readLine();
                if(w.equalsIgnoreCase("y"))
                {
                        System.out.print("\nEnter amount : ");
                        double amnt=Double.parseDouble(in.readLine());
                        ob.withdraw(amnt);
                        ob.disp();
                        ob.Get_Monthly_interest();
                        System.out.println("*******************THANKS FOR USING JAVA BANK*****************");
                        System.exit(0);
                }
        }
}

sample output

Problems @ Javadoc Declaration Console X <terminated> BankAccount [Java Application] C:\Program FilesVava\jre1.8.0_201\bin\javaw.exe (Aug 1, 2020, 12:06:40 AM) *** *******************WELCOME TO JAVA BANK Please enter your name :jerry Please enter your account number : 1234657890 Do you have Savings Account at our branch?true You can proceed.... ;) Enter balance of your account: 45000 Enter Annual Interest Rate in Percentage: 4 Name of account Holder is jerry Current Balance in your Savings Bank account is :45000.0 YOU WANT TO WITHDRAW MONEY(Y/N): Y Enter amount : 5600 Name of account Holder is jerry Current Balance in your Savings Bank account is :39400.0 Monthly Interest for the available account balance is Rs. 131.33333333333334 *********THANKS FOR USING JAVA BANK** *** *********

stock_Q6.java

stock_Q6.java


class Stock 
{

    private String symbol;
    private String name;

    private double previousClosingPrice;
    private double currentPrice;

    public Stock(String symbol, String name) 
        {
        this.symbol = symbol;
        this.name = name;
    }

    public String getSymbol() 
        {
        return symbol;
    }

    public void setSymbol(String symbol) 
        {
        this.symbol = symbol;
    }

    public String getName() 
        {
        return name;
    }

    public void setName(String name) 
        {
        this.name = name;
    }

    public double getCurrentPrice() 
        {
        return currentPrice;
    }

    public void setCurrentPrice(double currentPrice) 
        {
        this.previousClosingPrice = this.currentPrice;
        this.currentPrice = currentPrice;
    }

    public double getPreviousClosingPrice() 
        {
        return previousClosingPrice;
    }

    public void setPreviousClosingPrice(double previousClosingPrice) 
        {
        this.previousClosingPrice = previousClosingPrice;
    }

    public double getChangePercent() 
        {
        return (((currentPrice - previousClosingPrice) / previousClosingPrice)*100);
    }
}

public class stock_Q6 
{

    public static void main(String[] args) 
        {

        Stock stock1 = new Stock("ORCL", "Oracle Corporation");
        stock1.setCurrentPrice(34.5);
        stock1.setCurrentPrice(34.35);
        System.out.println("Stock Name: " + stock1.getName() + " Symbol: " + stock1.getSymbol());
        System.out.println("Previous Price: " + stock1.getPreviousClosingPrice());
        System.out.println("Current Price: " + stock1.getCurrentPrice());
        System.out.println("Percentage Changed: " + stock1.getChangePercent()); //Increase or Decrease in percentage as per the previous price and current price

    }
}

sample output

Problems @ Javadoc Declaration Console X <terminated stock_06 [Java Application] C:\Program Files\Javajrel.8.0_201\bin\javaw.exe (Aug 1, 2020, 12:12:14 AM) Stock Name: Oracle Corporation Symbol: ORCL Previous Price: 34.5 Current Price: 34.35 Percentage Changed: -0.434782608695648