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  1. import java.util.Scanner;
  2. import java.io.*;
  3.  
  4. public class Main{
  5. 	static boolean check_number(int choice)
  6. 	{
  7.  
  8. 		Scanner read = new Scanner(System.in);
  9. 		try{
  10. 			choice = Integer.parseInt(read.nextLine());
  11. 		} catch(Exception e){
  12. 			System.out.println("Choice have to been integer, bigger than 0");
  13. 		}
  14. 		read.close();
  15. 		return choice == 0?false:true; 
  16.  
  17. 	}
  18.  
  19. 	public static void main(String[] args)
  20. 	{
  21. 		int choice = 0;
  22. 		boolean check=false;
  23.  
  24.  
  25. 		System.out.println("Choose option:");
  26. 		System.out.println("1. Adding, multiplication, subtraction, division");
  27. 		while(!check)
  28. 		{
  29. 			check = check_number(choice);
  30. 			System.out.println(choice);
  31. 		}
  32. 	}
  33. }
Success #stdin #stdout 0.14s 321344KB
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Choose option:
1. Adding, multiplication, subtraction, division
0
https://ideone.com/l7aQ7x
language:
Java (HotSpot 12)
created:
10 years ago
visibility:
public

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