Reader Writer Problem to solve synchronization issues

Readerwriterby Semaphore
........................\About.class
........................\About.java
........................\bl_ball.gif
........................\bookblue.gif
........................\bookgreen.gif
........................\bookred.gif
........................\CodeWin.class
........................\CodeWin.java
........................\Data_base.class
........................\Data_base.java
........................\dblock.gif
........................\dbunlock.gif
........................\Gui.class
........................\Gui.java
........................\mutexlock.gif
........................\mutexunlock.gif
........................\pencil_blue.gif
........................\pencil_red.gif
........................\rd_ball.gif
........................\ReaderThread.class
........................\ReaderThread.java
........................\RWSem.class
........................\rwsem.htm
........................\RWSem.java
........................\rwsem_wb.htm
........................\Semaphore.class
........................\Semaphore.java
........................\textbox.gif
........................\WriterThread.class
........................\WriterThread.java

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