Write a program name numbers.java that repeatedly asks the user to input a numbe

Question

Write a program name numbers.java that repeatedly asks the user to input a number. After each number is inputted, the program displays how many numbers have been entered so far, the average of all the numbers that have been entered so far, and the largest number that has been entered so far. If the user enters done, the program should end, displaying the final message.

Write a program that you can tell knock-knock jokes to. To be more specific, here's what the program should do:

1. Display a message indicating that the program is ready to hear a joke.

2. Get a line of text from the user.

3. If the text doesn't contain the word knock (in any case), then print a message saying so and ask the user to start over (and go back to step 2).

4. If the message does contain the word knock, then print Who's there?

5. Get a line of text from the user.

6. Display the user's text followed by who?

7. Get a line of text from the user.

8. Laugh

3.

Explanation / Answer

/*
* Java rogram that
* repeatedly asks the user to input a number.
* After each number is inputted, the program displays
* how many numbers have been entered so far, the average
*   of all the numbers that have been entered so far, and the
*   largest number that has been entered so far. If the user enters done,
*   the program should end, displaying the final message.*/

import java.util.Scanner;
public class Numbers
{
   public static void main(String[] args)
   {
      
       //Scanner to read input
       Scanner keyboard=new Scanner(System.in);
       int sential=999;//to stop reading input;
       int value;
       double sum=0;
       double average=0;
       int count=0;
       double largest=0;
      
       System.out.println("Enter an input value or enter 999 to stop");
       value=keyboard.nextInt();
      
       //stop reading if the entered value is 999
       while(value!=sential)
       {
           if(value>largest)
               largest=value;
          
           sum+=value;
           count++;
           average=sum/count;
           System.out.println("Value :"+value);
           System.out.println("Numbers entered :"+count);
           System.out.println("Average :"+average);
           System.out.println("Larget value: "+largest);
           System.out.println("Enter an input value or enter 999 to stop");
           value=keyboard.nextInt();
       }
      
       System.out.println("Program exited");
      
   }
}

Sample op:

Enter an input value or enter 999 to stop
1
Value :1
Numbers entered :1
Average :1.0
Larget value: 1.0
Enter an input value or enter 999 to stop
2
Value :2
Numbers entered :2
Average :1.5
Larget value: 2.0
Enter an input value or enter 999 to stop
3
Value :3
Numbers entered :3
Average :2.0
Larget value: 3.0
Enter an input value or enter 999 to stop
4
Value :4
Numbers entered :4
Average :2.5
Larget value: 4.0
Enter an input value or enter 999 to stop

------------------------------------------------------------------

//KnockKnock.java
import java.util.Scanner;
public class KnockKnock
{
   public static void main(String[] args)
   {
       //Scanner to read input
       Scanner keyboard=new Scanner(System.in);
      
       System.out.println("Enter a line of joke");
       //read a joke from the user
       String joke=keyboard.nextLine();
      
      
       //Read till the user enter the text contains knock or KNOCK
       while(!(joke.contains("knock") ||joke.contains("KNOCK")))
       {
           System.out.println("Enter a line of joke");
           //read a joke from the user
           joke=keyboard.nextLine();
       }
      
       System.out.println("Who's is there ?");
      
       //read a line of text from the user
       String line=keyboard.nextLine();
      
       //print the line
       System.out.println("who ? "+line);
       //Read the userText for response
       String userText=keyboard.nextLine();
      
       //print the userText followd by "Laugh"
       System.out.println("Laugh"+ userText);
      
      
          
      
      
   }
}

Sample op:

Enter a line of joke
Jack of all master of none
Enter a line of joke
A knock kick all kicks
Who's is there ?
Jhonson
who ? Jhonson
Mighe tell jokes
LaughMighe tell jokes

Hope this helps you

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