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Class Object

public class Object

Class Object is the root of the Java Card platform class hierarchy. Every class has Object as a superclass. All objects, including arrays, implement the methods of this class. This Java Card platform class's functionality is a strict subset of the definition in the JavaTM 2 Platform Standard Edition (J2SETM) API Specification.

Constructor Summary
Object ()           


Method Summary
 boolean equals (Object  obj)          Compares two Objects for equality.


Constructor Detail


public Object()

Method Detail


public boolean equals(Object  obj)

Compares two Objects for equality. The equals method implements an equivalence relation:

  • It is
  • reflexive

: for any reference value x, x.equals(x) should return true.

  • It is
  • symmetric

: for any reference values x and y, x.equals(y) should return true if and only if y.equals(x) returns true.

  • It is
  • transitive

: for any reference values x, y, and z, if x.equals(y) returnstrue and y.equals(z) returns true, then x.equals(z) should return true.

  • It is
  • consistent

: for any reference values x and y, multiple invocations of x.equals(y) consistently return true or consistently return false.

  • For any reference value x, x.equals(null) should return false.

The equals method for class Object implements the most discriminating possible equivalence relation on objects; that is, for any reference values x and y, this method returns true if and only if x and y refer to the same object (x==y has the value true).

Parameters:obj - the reference object with which to compare.

Returns:true if this object is the same as the obj argument; false otherwise.

javacard/java-card-api/object.txt · Last modified: 2017/05/13 04:05 (external edit)