fib_range.java

import java.util.*;//java package
class fibo
{//class starts
    void fib(int n,int m)// method fib
    {
        int f1=0,f2=1,f3=1;
         if(n==0 ){
                        System.out.print("0 ,1,");
                    }
        while(f1<=m){
                f1=f2;
                f2=f3;
                if(f3>=n && f3<=m){
              System.out.print(f3+",");}
                f3=f1+f2;
        }
    }


    public static void main(String args[])//main method
    {
    Scanner in= new Scanner(System.in);
    fibo fi=new fibo();
    int lb,ub;
    System.out.println("enter the lower and upper bound: ");
    lb=in.nextInt();ub=in.nextInt();
    System.out.println("the fibonacci numbers in the range "+lb+" - "+ub+" are:");
    fi.fib(lb,ub);
    }
}// class ends