Java™ How To Program (Early Objects), Tenth Edition

Class SharedBufferTest2

Class SharedBufferTest2 (Fig. 23.21) is identical to that of Fig. 23.17. Study the outputs in Fig. 23.21. Observe that every integer produced is consumed exactly once—no values are lost, and no values are consumed more than once. The Lock and Condition objects ensure that the Producer and Consumer cannot perform their tasks unless it’s their turn. The Producer must go first, the Consumer must wait if the Producer has not produced since the Consumer last consumed and the Producer must wait if the Consumer has not yet consumed the value that the Producer most recently produced. Execute this program several times to confirm that every integer produced is consumed exactly once. In the sample output, note the highlighted ...