what is wrapper class in java.

Discussion in 'JavaScript' started by bulochc83, Jul 9, 2010.

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  1. #1
    suggest me.
     
    bulochc83, Jul 9, 2010 IP
  2. Rainulf

    Rainulf Active Member

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    #2
    Rainulf, Jul 9, 2010 IP
  3. bulochc83

    bulochc83 Peon

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    #3
    thank u for your suggestion........
     
    bulochc83, Jul 14, 2010 IP
  4. Kaizoku

    Kaizoku Well-Known Member

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    #4
    Mostly a wrapper class promotes primitive types to a class, so that methods could be performed, or added into hashmaps etc.

    You can't do this.
    int a = 6;
    a.toString();

    You can do this.
    Integer a = 6;
    a.toString();
     
    Kaizoku, Jul 15, 2010 IP