public class kuai { 
String name; 

boolean Enable = true; 

public kuai(String name) { 
this.name = name; 
} 

public synchronized void pickup(){ 
try { 
while(Enable==false){ 
this.wait(); 
} 
this.Enable =false; 
} 
catch (Exception e) { 

} 

} 

public synchronized void putdown() { 
this.Enable =true; 
this.notifyAll(); 
} 

public static void main(String args[]) { 
kuai k1 = new kuai("筷子1號"); 
kuai k2 = new kuai("筷子2號"); 
kuai k3 = new kuai("筷子3號"); 
kuai k4 = new kuai("筷子4號"); 
kuai k5 = new kuai("筷子5號"); 

People p1 = new People("人1號", k1, k2); 
People p2 = new People("人2號", k2, k3); 
People p3 = new People("人3號", k3, k4); 
People p4 = new People("人4號", k4, k5); 
People p5 = new People("人5號", k5, k1); 

p1.start(); 
p2.start(); 
p3.start(); 
p4.start(); 
p5.start(); 
} 
}