For this Question: Nobita wants to score well in his upcoming test, but he is not able to solve the simple division problems, seeing Nobita's determination Doraemon gives him a gadget that can do division problems easily but somehow Nobita deleted the internal program which calculates the division.
As an excellent coder, Nobita came to you for help. Help Nobita to write a code for his gadget. 
You will be given two integers <b>D</b> and <b>Q</b>, you have to print the value of <b>D/Q</b> rounded down .The input contains two space- separated integers depicting the values of D and Q.

Constraints:-
0 <= D, Q <= 100Print the values of D/Q if the value can be calculated else print -1 if it is undefined.

Note:- Remember division by 0 is an undefined value that will give runtime error in your program.Sample Input:-
9 3

Sample Output:-
3

Sample Input:-
8 5

Sample Output:-
1

Explanation:-
8/5 = 1.6 = 1(floor), I have written this Solution Code: import java.io.*;
import java.util.*;
import java.lang.Math.*;



class Main {
	public static void main (String[] args) throws IOException{

		BufferedReader bf = new BufferedReader(new InputStreamReader(System.in));
		String[] st = bf.readLine().split(" ");
		if(Integer.parseInt(st[1])==0)
			System.out.print(-1);
		else {
			int f = (Integer.parseInt(st[0])/Integer.parseInt(st[1]));

			System.out.print(f);
		}
	}
}, In this Programming Language: Java, Now tell me if this Code is compilable or not?