java.lang
Class Boolean

java.lang.Object
  java.lang.Boolean

All Implemented Interfaces:

Serializable

public final class Boolean

extends Object

implements Serializable

JML's specification of java.lang.Boolean.

Version:

$Revision: 1.16 $

Author:

Brandon Shilling, Gary T. Leavens, Patrice Chalin

Class Specifications

represents theBoolean <- this.booleanValue();

Specifications inherited from class Object

represents objectState <- org.jmlspecs.lang.JMLDataGroup.IT; public represents _getClass <- \typeof(this);

Model Field Summary
boolean	theBoolean

 

Model fields inherited from class java.lang.Object

_getClass, objectState, theString

 

Ghost Field Summary

 

Ghost fields inherited from class java.lang.Object

objectTimesFinalized, owner

 

Field Summary
static Boolean	FALSE
static Boolean	TRUE
static Class	TYPE

 

Constructor Summary

Boolean(boolean value)

Boolean(String s)

 

Model Method Summary

 

Model methods inherited from class java.lang.Object

hashValue

 

Method Summary
boolean	booleanValue()
boolean	equals(nullable Object obj)
static boolean	getBoolean(String name)
int	hashCode()
String	toString()
static String	toString(boolean b)
static Boolean	valueOf(boolean b)
static Boolean	valueOf(String s)

 

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

 

Model Field Detail

theBoolean

public boolean theBoolean

TRUE

public static final Boolean TRUE

Specifications: non_null

FALSE

public static final Boolean FALSE

Specifications: non_null

TYPE

public static final Class TYPE

Specifications: non_null

Boolean

public Boolean(boolean value)

Specifications: (class)pure

public normal_behavior
assignable theBoolean;
ensures this.theBoolean == value;

Boolean

public Boolean(String s)

Specifications: (class)pure

public normal_behavior
assignable theBoolean;
ensures this.theBoolean == "true".equalsIgnoreCase(s);

booleanValue

public boolean booleanValue()

Specifications: (class)pure

public normal_behavior
assignable \nothing;
ensures \result == this.theBoolean;

valueOf

public static Boolean valueOf(boolean b)

Specifications: pure non_null

public normal_behavior
assignable \nothing;
ensures \result .booleanValue() == b;

valueOf

public static Boolean valueOf(String s)

Specifications: pure non_null

public normal_behavior
assignable \nothing;
ensures \result .booleanValue() == "true".equalsIgnoreCase(s);

toString

public static String toString(boolean b)

Specifications: pure non_null

public normal_behavior
assignable \nothing;
ensures valueOf(\result ).booleanValue() == b;

toString

public String toString()

Overrides:

toString in class Object

Specifications: non_null (class)pure

     also

public normal_behavior
assignable \nothing;
ensures valueOf(\result ).booleanValue() == this.theBoolean;

Specifications inherited from overridden method in class Object:
       non_null

public normal_behavior
assignable objectState;
ensures \result != null&&\result .equals(this.theString);
ensures (* \result is a string representation of this object *);

     also

public code normal_behavior
assignable \nothing;
ensures \result != null&&(* \result is the instance's class name, followed by an @, followed by the instance's hashcode in hex *);

     also

public code model_program { ... }

    implies_that

assignable objectState;
ensures \result != null;

hashCode

public int hashCode()

Overrides:

hashCode in class Object

Specifications: (class)pure

Specifications inherited from overridden method in class Object:

public behavior
assignable objectState;
ensures (* \result is a hash code for this object *);

     also

public code normal_behavior
assignable \nothing;

equals

public boolean equals(nullable Object obj)

Overrides:

equals in class Object

Specifications: pure

     also

public normal_behavior

{|

requires obj != null&&(obj instanceof java.lang.Boolean);
assignable \nothing;
ensures \result == (this.theBoolean == ((java.lang.Boolean)obj).booleanValue());

also

requires obj == null||!(obj instanceof java.lang.Boolean);
assignable \nothing;
ensures !\result ;

|}

Specifications inherited from overridden method equals(Object obj) in class Object:
       pure

public normal_behavior
requires obj != null;
ensures (* \result is true when obj is "equal to" this object *);

     also

public normal_behavior
requires this == obj;
ensures \result ;

     also

public code normal_behavior
requires obj != null;
ensures \result <==> this == obj;

     also

diverges false;
ensures obj == null ==> !\result ;

getBoolean

public static boolean getBoolean(String name)

Specifications: pure

public normal_behavior
assignable \nothing;
ensures \result == (name == null||name.equals("") ? false : valueOf(java.lang.System.getProperty(name)).booleanValue());