23 What output is produced by the following code if user ent

23 What output is produced by the following code if user enters these values for a question asked by the program: (1) Enter a positive integer value! (enter -1 to end) :3 (2) Enter a positive integer value! (enter -1 to end) :five (3) Enter a positive integer value! (enter -1 to end):7 (4) Enter a positive integer value! (enter -1 to end) 1 User entered 3 …User entered five ...User entered 7 value! (enter -1 to end):-1 User entered-1 import java.util.Scanner; class Verify input_ data public static void main (Stringl) z) System.out.print(\"The program shows how to verify VP data using Scanner methods\" Scanner kB- new Scanner(System.in)

Solution

(23)

In the given program,

   -> outer do-while loops till user enters some negative number
  
   -> Inner while loops till user enters an integer

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ANS: (1):

   User entered 3

Output Produced:

   This program shows how to verify I/P data using Scanner methods
  
   Enter a positive integer value! (enter -1 to end): 3
  
   Good! You entered: 3 (User entered)
  
   Enter a positive integer value! (enter -1 to end):
  
   ( Continue to prompt the same until user enters -1 to end)
  
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ANS: (2):

   User entered five

Output Produced:

   This program shows how to verify I/P data using Scanner methods
  
   Enter a positive integer value! (enter -1 to end): five
  
   That\'s not a member!
  
   Enter a positive integer value:
  
   ( Continue to prompt the same until user enters -1 to end)
  
  
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ANS: (3):

User entered 7

Output Produced:

   This program shows how to verify I/P data using Scanner methods
  
   Enter a positive integer value! (enter -1 to end): 7
  
   Good! You entered: 7 (User entered)
  
   Enter a positive integer value! (enter -1 to end):
  
   ( Continue to prompt the same until user enters -1 to end)
  
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ANS: (4):

   User entered -1

Output Produced:

   This program shows how to verify I/P data using Scanner methods
  
   Enter a positive integer value! (enter -1 to end): -1
  
   Good! You entered: -1
  
   End of Program

   ( Program stops here as Sentinel value is encountered )
  
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(24)

Given two statements are same way of declaring array.

   Statements:
   
   int[] weight = new int[100];
   int weight1[] = new int[100];
  
   creates an array with name weight of capacity 100
  
  
In order to declare am array named income of capacity 20 elements:

   int[] income = new int[20];
  
   (or)
     
   int income[] = new int[20]
      
  
Since given two statements are same for declaring an array, answer is \"Yes\"