Develop a class called Buffer that holds a single integer value. The class has two public methods called read that returns the current value of the buffer and writek that writes integer k to the buffer. A thread invoking read must wait for a value to be written to the buffer. Once the item in the buffer is read it is cleared to allow a writer thread write. If the buffer contains a value a writer thread must wait for the current value of the buffer to be read by another thread.

Implement using ReentrantLock and condition variables

trystay in tunnel for random period int t intMathrandom; Thread.sleept;

catchInterruptedException e tunnel.leave;