Generate a random number in 0 100 in java Write an efficient

Generate a random number in [0, 100] in java. Write an efficient guess procedure that takes no more than 7 guesses to get any given integer in that range. For each guess, the hint can be one of the following:

-Congratulations! You got it.

-The guess is too large.

-The guess is too small.

Here is a sample output:

Guess #1: 50

The guess is too big.

Guess #2: 24

The guess is too small.

Guess #3: 37

The guess is too big.

Guess #4: 30

The guess is too small.

Guess #5: 33

The guess is too big.

Guess #6: 31

The guess is too small.

Guess #7: 32

Congratulations!

What if the random number is in [0, 1000], how many guesses your program will take?

Solution

//Note : This Programme takes no more than 7 guesses to find random number if range between 0,100

//Note : This Programme takes no more than 11 guesses to find random number if range between 0,1000

//Random Number Guess Programme if range 0,100

//RAndom Number Guess Programme
import java.util.Scanner;       //scanner class to read data
import java.util.Random;       //random class to generate random number

public class Guess               //create class Guess
{

public static void main(String []args)           //define main method
{
int gvalue;
Scanner sc=new Scanner(System.in);       //create scanner object
Random r = new Random();               //create random object      
           int Low = 0;
           int High = 1000;
           int Result = r.nextInt(High-Low) + Low;   //generate rand between 0,100
          
           //System.out.println(Result);
           int i=0;
           while(true)                       //loop check for only 7 guesses
           {
               System.out.println(\"Guess #\"+(i+1));       //prompt for value for each guess
               gvalue=sc.nextInt();                       //read guessing value
               if(gvalue<Result)                           //check guess value is small or grater or equal to random number by if else ladder
                   System.out.println(\"The guess is too small.\");
               else if(gvalue>Result)
                   System.out.println(\"The guess is too large.\");
               else
               {
                   System.out.println(\"Congratulations! You got it.\");
                   break;
               }
               i++;
           }

          
}
}

Output :

Guess #1
50
The guess is too small.
Guess #2
75
The guess is too small.
Guess #3
87
The guess is too large.
Guess #4
81
Congratulations! You got it.

Output 2 (If range between 0,1000): for running change value