object
java.lang
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 theJavaTM 2 Platform Standard Edition (J2SETM)APISpecification.
Constructor Summary | |
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Object () |
Constructor Detail |
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Object
public Object()
Method Detail |
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equals
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.