Java wait和join方法之间的区别
在多线程中，当我们处理线程时，会出现暂停和启动线程的要求，为此线程提供了两种方法，分别用于等待和连接。
以下是wait()和join()之间的重要区别。
wait()vsjoin()的示例
JavaTester.java
public class JavaTester extends Thread {
static Object lock = new Object();
static int n;
int i;
String name;
JavaTester(String name, int i) {
this.name = name;
this.i = i;
}
@Override
public void run() {
try {
synchronized (lock) {
while (i != n) {
lock.wait();
}
System.out.println(name + " started");
n++;
lock.notifyAll();
}
synchronized (lock) {
while (i != n - 4) {
lock.wait();
}
System.out.println(name + " finished");
n++;
lock.notifyAll();
}
}
catch (InterruptedException e) {
}
}
public static void main(String[] args) throws Exception {
new JavaTester("a", 0).start();
new JavaTester("b", 1).start();
new JavaTester("c", 2).start();
new JavaTester("d", 3).start();
}
}输出结果
a started b started c started d started a finished b finished c finished d finished