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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. 		// your code goes here
  13. 	}
  14. }
  15.  
  16. abstract class Validator
  17. {
  18. 	private boolean isValid;
  19.  
  20. 	public Validator()
  21. 	{
  22. 		isValid = true;
  23. 	}
  24.  
  25. 	public void validate1()
  26. 	{
  27. 		reset();
  28. 	}
  29.  
  30. 	public final void validate2()
  31. 	{
  32. 		reset();
  33. 		validateInternal();
  34. 	}
  35.  
  36. 	protected abstract void validateInternal();
  37.  
  38. 	protected void reset()
  39. 	{
  40. 		isValid = true;	
  41. 	}
  42. }
  43.  
  44. class ConcreteValidator extends Validator
  45. {
  46. 	public void validate1()
  47. 	{
  48. 		super.validate1();
  49. 		System.out.println("ConcreteValidator.validate()");
  50. 	}
  51.  
  52. 	public void validateInternal()
  53. 	{
  54. 		System.out.println("ConcreteValidator.validateInternal()");
  55. 	}
  56. }
Success #stdin #stdout 0.06s 380224KB
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https://ideone.com/NL1Tbi
language:
Java (12.0.1)
created:
10 years ago
visibility:
public

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