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  1. import java.util.*;
  2. import java.lang.*;
  3. import java.io.*;
  4.  
  5. class Ideone{
  6. public static void main(String[] args) {
  7.     Potwor[] ptw = new Potwor[3];
  8.     ptw[0] = new Wampir();
  9.     ptw[1] = new Smok();
  10.     ptw[2] = new Potwor();
  11.     for (int x = 0; x < 3; x++) {
  12.             ptw[x].strasz(x);
  13.         }
  14.     }
  15. }
  16.  
  17. class Potwor {
  18.     boolean strasz(int z) { // pierwotna metoda
  19.         System.out.println("auuuuuu");
  20.         return true;
  21.         }
  22. }
  23.  
  24. class Wampir extends Potwor { // przeciążona metoda
  25.     @Override
  26.     boolean strasz(String b) {
  27.         System.out.println("można gryza");
  28.         return true;
  29.         }
  30. }
  31.  
  32. class Smok extends Potwor {
  33.     @Override
  34.     boolean strasz(int stopien) { // przesłonięta metoda
  35.             System.out.println("zioń ogniem");
  36.             return true;
  37.         }
  38. }
Compilation error #stdin compilation error #stdout 0s 0KB
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stdin
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Standard input is empty
compilation info 
Main.java:25: error: method does not override or implement a method from a supertype
    @Override
    ^
1 error
stdout
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Standard output is empty
https://ideone.com/Rqgf7F
language:
Java (12.0.1)
created:
7 years ago
visibility:
public

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