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java.lang
Class Boolean

java.lang.Object
  extended by java.lang.Boolean
All Implemented Interfaces:
Serializable, Comparable<Boolean>
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Top Examples, Source Code
public Boolean(boolean value)
See Also:
valueOf(boolean)
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[148]Create new Boolean
By Anonymous on 2004/03/05 19:18:16  Rate
boolean done; 
 done=new Boolean ( tmpstr4 ) ;  
 If  (  done  )   {   
 System.out.println ( "Query Executed" ) ; 
  } 

[1831]avoid constructor
By Pedro on 2006/10/05 09:42:52  Rate
Avoid usage of the constructor..since it instanciate a Boolean that is immutable that is identical to either Boolean.TRUE or Boolean.FALSE. 
 use valueOf instead.
public Boolean(String s)
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public boolean booleanValue()
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public int compareTo(Boolean b)
See Also:
Comparable, NullPointerException, compareTo
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public boolean equals(Object obj)
See Also:
Hashtable, Object.hashCode()
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public static final Boolean FALSE
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public static boolean getBoolean(String name)
See Also:
System.getProperty(java.lang.String, java.lang.String), System.getProperty(java.lang.String)
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[1327]Looks up a boolean system property
By Anonymous on 2005/03/04 21:19:39  Rate
Do not confuse it with Boolean.valueOf ( String ) , which converts a  
 String into a Boolean. 
  
  
 Boolean.getBoolean ( String )  looks up a system property and returns its  
 boolean value! So the expression Boolean.getBoolean ( "true" )  could  
 return false. The Java Doc says "Returns true if and only if the  
 system property named by the argument exists and is equal to the  
 string "true"." Well, it is a strange place to look up a system  
 property though. 
  
  
 

[1830]The person that let this method be called this way should be fired!
By Pedro on 2006/10/05 09:26:52  Rate
Why not called this method getSystemPropertyBoolean.. or at least something giving a hint about what is done... 
 
public int hashCode()
See Also:
Hashtable, Object.equals(java.lang.Object)
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public static boolean parseBoolean(String s)
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public String toString()
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Object
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public static String toString(boolean b)
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public static final Boolean TRUE
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public static final Class<Boolean> TYPE
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public static Boolean valueOf(boolean b)
See Also:
Boolean(boolean)
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public static Boolean valueOf(String s)
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