Question

. Write Java statements to instantiate a random number generator object and generate a random integer between 100 and 250 (inclusive).

Answer 1

Answer:

//import Random package

import java.util.Random;

class Main

{

public static void main (String[] args) throws java.lang.Exception

{

   try{

    /* create an object of Random class. this will generate random number

    in a given range. */

       Random rand = new Random();

       // create two variables and assign 100 and 250 to

       int l = 100;

       int h = 250;

       //generate the random number between 100 & 250 (inclusive)

       int ran_num = rand.nextInt((h+1)-l) + l;

       System.out.println("random number is: "+ran_num);

   }catch(Exception ex){

       return;}

}

}

Explanation:

Import "import java.util.Random" package.In this package, Random class exist. With the help of this class's object, we can generate a random number between a given range.Here we have to generate a random number between 100 to 250(inclusive). So "(h+1)-l" will be 151 and the number generate is in the range of 0-150. if we  add 100 to it, then random number will be in range of 100 to 250.

Output:

random number is: 158