THE FOLLOWING PROGRAM IS NEEDED IN JAVA LANGUAGE Design a class torepresent account, include the following...

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

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

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