java两个类A,B中分别都有一个线程，怎样能让A的线程中得到B类中线程的值，能举个简单的例子就最好了 两个线程,一个线程(a线程)出加数100以内加法题10道.由...
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package com.zhidao20161208;public class ThreadA extends Thread { private boolean status = true; public void run() { int i = 1; while (status) { // try { Thread.sleep(1); int a = getNum(); int b = getNum(); BeanOne.list.add(a + "," + b);// \u5199\u5165ConcurrentLinkedQueue\uff08\u7ebf\u7a0b\u5b89\u5168\u7684\u961f\u5217\u53ef\u4ee5\u652f\u6301\u591a\u7ebf\u7a0b\uff09 } catch (Exception e) { e.printStackTrace(); } i++; if (i >= 11) { status = false; } } } public int getNum() { return (int) (Math.random() * 100); }}package com.zhidao20161208;import java.util.concurrent.ConcurrentLinkedQueue;public class BeanOne extends Thread { public static ConcurrentLinkedQueue list = new ConcurrentLinkedQueue(); private boolean status = true; public void run() { int i =1; while (status) { String str = list.poll();// \u6bcf\u6b21\u5f39\u51fa\u4e00\u4e2a\u5143\u7d20\u9075\u5faa\u5148\u5165\u5148\u51fa\u7684\u539f\u5219 if(str!=null) { i=1; String [] num = str.split(","); System.out.println(num[0]+"+"+num[1]+"="+(Integer.parseInt(num[0])+Integer.parseInt(num[1]))); } else { System.out.println("\u6ca1\u6709\u751f\u6210\u9898\u76ee\uff0c\u5f00\u59cb\u7ed3\u675f\u5012\u8ba1\u65f6\uff1a"+(10-i)); if(i>=10) { System.out.println("\u7b49\u5f8510\u79d2\u4e00\u76f4\u6ca1\u6709\u9898\u76ee\u751f\u6210\uff0c\u7ebf\u7a0b\u7ed3\u675f"); status = false; } try { Thread.sleep(1000); } catch (InterruptedException e) { // TODO Auto-generated catch block e.printStackTrace(); } } i++; } }}public static void main(String[] args) { ThreadA a = new ThreadA(); a.start(); BeanOne b = new BeanOne(); b.start(); }
如果这线程不是做成死循环的，可利用JAVA的堆内存原理设置一下final static的对象。如果这两个线程都是一直在跑的可考虑用JDK1.5以后有的concurrent包中的队列LinkedBlockingQueue对象实现一个线程保存，另一个线程取出。当然这传和收线程的LinkedBlockingQueue对象必须是同一个。保存线程中用LinkedBlockingQueue对象的put方法将其添加到这个对象的队列中；
取出线程中代码片段：
BlockingQueue<Object> queue;
public void run() {
while(true){
List<Object> list = new ArrayList<Object>();
try {
synchronized(Thread.currentThread()){
Thread.currentThread().wait(15000);
}
//waiter.await(5, TimeUnit.SECONDS);
int listSize = queue.drainTo(list, 2500);//用队列的方式将list中的数据一填充500个，一次操作填充500
if(listSize == 0){
continue;
}
//这里是具体的操作
logger.fatal("Get "+listSize+" ap5min object from Queue!");
list.clear();
/*list.add(obj);
if(list.size() == 100){
dao.batchSaveOrUpdate(list, 100);
list.clear();
}*/
} catch(Exception e) {
logger.error("保存数据出现异常:",e);
}
}
}
class A extends Thread{
B b = new B();
public void run(){
b.i = 10;或者把B中的i改为static修饰
然后用 B.i =10 也是可以的
}
}
class B extends Thread{
int i = 1/static int i = 1;
}
可以将b类中的那个值设置为static，通过B.变量名来获取。
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绛旓細//A绫讳腑浣跨敤B绫鏂规硶public class A{ public static void main(String[] args){ B b = new B(); b.pint(); }}class B{ void pint(){ System.out.println("杩欐槸B绫讳腑鐨刾int()鏂规硶銆"); }}//B绫讳腑浣跨敤A绫荤殑鏂规硶public class B{ public static void main(Str...
