Question

In Java!

NotMultipleStream: a stream that returns, in numeric order, integers that are not multiples of a certain value, starting from an initial value. The NotMultipleStream should behave like an IntegerStream, but it should include a NotMultipleFilter to filter out multiples of a certain value. The class will need the following methods and constructors:

1. The constructor takes two integer values. The first is the base value and the second is the initial value.

2. next: takes no input and returns an integer. The first value returned by next should be the the smallest number, no smaller than the initial value such that the number is not divisible by the base value. Each subsequent call should return the next largest integer that is not a multiple of the base value.

Answer 1

NOTE: Lines starting with // are comments, screen shot of code and testing class and outputs is provided below

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class NonMultipleStream{

   //decalare variables
   int base;
   int initVal;
   static int currentNum;

   NonMultipleStream(int base,int initVal){

       this.base=base;
       this.initVal=initVal;
       this.currentNum=initVal;

   }

   //method to return next Integer of the Stream
   public int next(){
       //loop
       while(true){
           //check if currentNum is divisible by base
           if(currentNum%base!=0){
               //return the number
               this.currentNum++;
               return this.currentNum-1;
           }
           else
               //increment current number
               this.currentNum++;
       }

   }

}

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import java.util.Scanner;
import java.io.*;

class TestNonMultipleStream{

public static void main(String[] args) {
  
   //decalre variables
   int base,initval;
   //create scanner class object
   Scanner s=new Scanner(System.in);
   //prompt user to enter input
   System.out.print("Enter base value:");
   base=s.nextInt();
   System.out.print("Enter Initial Vaule:");
   initval=s.nextInt();

   //create object of NonMultipleStream Class
   //pass inputs as arguments to constructor
   NonMultipleStream nsm=new NonMultipleStream(base,initval);

   System.out.println("Stream Outputs:");
   System.out.println(nsm.next());
   System.out.println(nsm.next());
   System.out.println(nsm.next());
   System.out.println(nsm.next());
   System.out.println(nsm.next());
   System.out.println(nsm.next());
   System.out.println(nsm.next());

}
}

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CODE screen shots:

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Outputs: