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  1. /* package whatever; // don't place package name! */
  2.  
  3. import java.util.*;
  4. import java.lang.*;
  5. import java.io.*;
  6.  
  7. /* Name of the class has to be "Main" only if the class is public. */
  8. class Ideone
  9. {
  10. public static void main (String[] args) throws java.lang.Exception
  11. {
  12.  
  13.  
  14. Scanner scanner = new Scanner(System.in);
  15. int input;
  16. badinput: while (true) {
  17. System.out.println("Enter menu item:");
  18. input = scanner.nextInt();
  19. String inputString;
  20. if ((!(input > 0 && input < 5)))
  21. continue badinput;
  22. else {
  23. switch (input) {
  24. case 1:
  25. inputString = "User want to Enter data";
  26. break;
  27. case 2:
  28. inputString = "User want to Display sata";
  29. break;
  30. case 3:
  31. inputString = "User want to Print data";
  32. break;
  33. case 4:
  34. inputString = "User want to Exit";
  35. break;
  36. default:
  37. inputString = "Invalid Number";
  38. break;
  39. }
  40. System.out.println(inputString);
  41. break;
  42. }
  43.  
  44. }
  45. scanner.close();
  46.  
  47. }
  48. }
Success #stdin #stdout 0.1s 2841600KB
stdin
10
50
33
-5
3
stdout
Enter menu item:
Enter menu item:
Enter menu item:
Enter menu item:
Enter menu item:
User want to Print data