Check The folder saying 4306 Lab 1 that where you will find the questions. Rest are help

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Lab_1_2_StartUp.zip
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Lab_1_2_StartUp/SelectShape.java

Lab_1_2_StartUp/SelectShape.java


// Lab 1 Question 2 StartUp file

import  javax . swing . JFrame ;

public   class   SelectShape
{
    public   static   void  main ( String  args [])
    {
       SelectShapeJFrame  selectShapeJFrame  =   new   SelectShapeJFrame ();  
      selectShapeJFrame . setDefaultCloseOperation ( JFrame . EXIT_ON_CLOSE );
      selectShapeJFrame . setSize ( 420 ,   470 );   // set frame size
      selectShapeJFrame . setVisible ( true );   // display frame
    }  
}   // end class SelectShape

/**************************************************************************
 * (C) Copyright 1992-2018 by Deitel & Associates, Inc. and               *
 * Prentice Hall. All Rights Reserved.                                    *
 *                                                                        *
 * DISCLAIMER: The authors and publisher of this book have used their     *
 * best efforts in preparing the book. These efforts include the          *
 * development, research, and testing of the theories and programs        *
 * to determine their effectiveness. The authors and publisher make       *
 * no warranty of any kind, expressed or implied, with regard to these    *
 * programs or to the documentation contained in these books. The authors *
 * and publisher shall not be liable in any event for incidental or       *
 * consequential damages in connection with, or arising out of, the       *
 * furnishing, performance, or use of these programs.                     *
 *************************************************************************/

Lab_1_2_StartUp/SelectShapeJFrame.java

Lab_1_2_StartUp/SelectShapeJFrame.java


// Lab 1 Question 2 StartUp file
// Draw a shape 20 times in random positions
import  java . awt . BorderLayout ;
import  java . awt . event . ItemListener ;
import  java . awt . event . ItemEvent ;
import  javax . swing . JComboBox ;
import  javax . swing . JFrame ;

public   class   SelectShapeJFrame   extends   JFrame  
{
    private   ShapeOption  shapeOptions []   =   {   ShapeOption . OVAL ,   ShapeOption . RECTANGLE  };
    private   ShapeOption  shape  =   ShapeOption . OVAL ;

    private   JComboBox < ShapeOption >  choiceJComboBox ;
    private   SelectShapeJPanel  selectShapeJPanel ;

    public   SelectShapeJFrame ()
    {
       super ( "Selecting Shapes" );

      selectShapeJPanel  =   new   SelectShapeJPanel ();

      choiceJComboBox  =   new   JComboBox < ShapeOption > ( shapeOptions );
      choiceJComboBox . addItemListener (
          new   ItemListener ()   // anonymous inner class
          {
             public   void  itemStateChanged ( ItemEvent  e )
             {
               selectShapeJPanel . setShape (
                   ( ShapeOption )  choiceJComboBox . getSelectedItem ());
               repaint ();
             }  
          }
       );  

      add ( selectShapeJPanel ,   BorderLayout . CENTER );
      add ( choiceJComboBox ,   BorderLayout . SOUTH );
    }
}   // end class SelectShapeJFrame

Lab_1_2_StartUp/SelectShapeJPanel.java

Lab_1_2_StartUp/SelectShapeJPanel.java


// Lab 1 Question 2 StartUp file
// Draw a shape 20 times in random positions
import  java . awt . Color ;
import  java . awt . Graphics ;
import  java . util . Random ;
import  javax . swing . JPanel ;

public   class   SelectShapeJPanel   extends   JPanel
{
    private   final   int  SIZE  =   400 ;
    private   ShapeOption  shape  =   ShapeOption . OVAL ;

    // draw the new shape in random locations 20 times
    public   void  paintComponent ( Graphics  g )
    {
       super . paintComponent ( g );
       Random  random  =   new   Random ();   // get random-number generator

       for   ( int  count  =   1 ;  count  <=   20 ;  count ++ )  
       {
          // add 10 and 25 to prevent drawing over edge
          int  x  =   ( int )   ( random . nextFloat ()   *  SIZE )   +   10 ;
          int  y  =   ( int )   ( random . nextFloat ()   *  SIZE )   +   25 ;
          int  width  =   ( int )   ( random . nextFloat ()   *   ( SIZE  -  x ));
          int  height  =   ( int )   ( random . nextFloat ()   *   ( SIZE  -  y ));


         g . setColor ( Color . BLUE );

          // draw the appropriate shape
          switch   ( shape )  
          {
             case  OVAL :
               g . drawOval ( x ,  y ,  width ,  height );
                break ;
             case  RECTANGLE :
               g . drawRect ( x ,  y ,  width ,  height );
                break ;
          }  
       }  
    }  

    // set new shape
    public   void  setShape ( ShapeOption  preference )
    {
      shape  =  preference ;
    }  
}   // end class SelectShapeJPanel

Lab_1_2_StartUp/ShapeOption.java

Lab_1_2_StartUp/ShapeOption.java


// Lab 1 Question 2 StartUp file
// Defines an enum type for the program's shape options.

public  enum  ShapeOption
{
    // declare contents of enum type
   OVAL ( 1 ),
   RECTANGLE ( 2 );

    private   final   int  value ;   // current shape

    ShapeOption ( int  valueOption )
    {
      value  =  valueOption ;
    }  

    public   int  getValue ()
    {
       return  value ;
    }  
}   // end enum ShapeOption