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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.         Ideone app = new Ideone() ;
  13.         app.demo() ;
  14. 	}
  15.  
  16.     private void demo() {
  17.         Person p1 = new Person( "JJ" ) ;
  18.         Person p2 = new Person( "JJ" ) ;
  19. 		System.out.println( p1.equals( p2 ) );
  20.         System.out.println( p1.equals( p2 ) );
  21.     }
  22.  
  23.     class Person {
  24.         public String name ;
  25.  
  26.         public Person ( String name ) {
  27.             this.name = Objects.requireNonNull( name ) ;
  28.         }
  29.  
  30.         @Override
  31.         public boolean equals( Object o ) {
  32.             System.out.println( "Running override, Object argument." ) ;
  33.             Person otherPerson = ( Person ) o ;
  34.             boolean match = Objects.equals( this.name , otherPerson.name ) ;
  35.             return match ;
  36.         }
  37.  
  38.         // Overload
  39.         public boolean equals( Person p ) {
  40.             System.out.println( "Running overload, Person argument." ) ;
  41.             boolean match = Objects.equals( this.name , p.name ) ;
  42.             return match ;
  43.         }
  44.     }
  45.  
  46. }
Success #stdin #stdout 0.08s 48756KB
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Standard input is empty
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Running overload, Person argument.
true
Running overload, Person argument.
true
https://ideone.com/tujF0k
language:
Java (HotSpot 12)
created:
4 years ago
visibility:
public

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