Java Basic


  1. Which of these methods can be used to obtain the command name for invoking ActionEvent object?











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    NA

    Correct Option: D

    getActionCommand()


  1. Which of these are integer constants defined in ActionEvent class?











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    NA

    Correct Option: D

    Action event defines 4 integer constants ALT_MASK, CTRL_MASK, SHIFT_MASK and ACTION_PERFORMED



  1. Which of these methods can be used to know which key is pressed?











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    NA

    Correct Option: C

    The getModifiers() methods returns a value that indicates which modifiers keys (ALT, CTRL, META, SHIFT) were pressed when the event was generated.


  1. Which of these events is generated by scroll bar?











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    NA

    Correct Option: D

    WindowEvent



  1. Which of these methods is used to get x coordinate of the mouse?











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    NA

    Correct Option: C

    getX() and getY() are used to obtain X AND Y coordinates of the mouse.