| java.lang.Object | |
| ↳ | javax.smartcardio.ATR |
Class Overview
A Smart Card's answer-to-reset bytes. A Card's ATR object can be obtained
by calling getATR().
This class does not attempt to verify that the ATR encodes a semantically
valid structure.
Instances of this class are immutable. Where data is passed in or out via byte arrays, defensive cloning is performed.
See Also
Summary
| Public Constructors | |||||||||||
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Constructs an ATR from a byte array.
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| Public Methods | |||||||||||
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Compares the specified object with this ATR for equality.
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Returns a copy of the bytes in this ATR.
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Returns a copy of the historical bytes in this ATR.
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Returns the hash code value for this ATR.
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Returns a string representation of this ATR.
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Inherited Methods | |||||||||||
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From class
java.lang.Object
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Public Constructors
public ATR (byte[] atr)
Constructs an ATR from a byte array.
Parameters
| atr | the byte array containing the answer-to-reset bytes |
|---|
Throws
| NullPointerException | if atr is null
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Public Methods
public boolean equals (Object obj)
Compares the specified object with this ATR for equality. Returns true if the given object is also an ATR and its bytes are identical to the bytes in this ATR.
Parameters
| obj | the object to be compared for equality with this ATR |
|---|
Returns
- true if the specified object is equal to this ATR
public byte[] getBytes ()
Returns a copy of the bytes in this ATR.
Returns
- a copy of the bytes in this ATR.
public byte[] getHistoricalBytes ()
Returns a copy of the historical bytes in this ATR. If this ATR does not contain historical bytes, an array of length zero is returned.
Returns
- a copy of the historical bytes in this ATR.
public int hashCode ()
Returns the hash code value for this ATR.
Returns
- the hash code value for this ATR.
public String toString ()
Returns a string representation of this ATR.
Returns
- a String representation of this ATR.