inttarget=(int)(Math.random()*100)+1;intattempts=0;while(attempts<5){// 最多尝试5次System.out.print("请输入你的猜测:");intguess=newScanner(System.in).nextInt();if(guess==target){System.out.println("🎉 通关成功!");break;}else{System.out.println(guess>target?"猜大了":"猜小了"...
}# javac -g:none Test.java# mv Test.class Test2.class# diff -s Test1.class Test2.classFiles Test1.classandTest2.classare identical http://stackoverflow.com/questions/8880870/java-for-vs-whiletrue
简介:What is the difference between a standard while(true) loop and for(;;)? Is there any, or will both be mapped to the same bytecode after compiling? Semantically, they're completely equivalent. What is the difference between a standardwhile(true)loop andfor(;;)? Is there any, or w...
* @return the previous value */publicfinalintgetAndDecrement() {for(;;) {intcurrent=get();intnext =current-1;if(compareAndSet(current, next))returncurrent; } } 采用的是for(;;) 而我常用的习惯是用while(true),这两者有什么区别呢。是不是for(;;)要比while(true)快呢? 做了如下测试 /**...
注意必须是包含关系,不能出现交叉。while、do...while、for 都可以进行循环嵌套,并且他们之间也可以...
(false,0L);}// 下面不需要原子更新,因为同时只有一个线程访问到这里// 获取到锁了且上一个节点是head// head后移一位head=node;// 清空当前节点的内容,协助GCnode.thread=null;// 将上一个节点从链表中剔除,协助GCnode.prev=null;prev.next=null;}// 入队privateNodeenqueue(){// 自旋while(true){/...
; // for (Strings : arr) { for-each循环遍历 // System.out.println(s); // } Iterator<String> it=arr.iterator(); //获取迭代器,while循环遍历集合 while it.hasNext()) { System.out.print(it.next()+"、"); /设置输出形式 } ListString> sub_arrnew ArrayList(); //向上转型(小...
while (flag) { synchronized (this) { if (balance <= 0) { System.out.println("余额不足"); flag = false; return; } count++; balance -= 1000; System.out.println(Thread.currentThread().getName() + "取走了"+name+"1000元" + "剩余:" + balance + "-" + "第" + count + "次取...
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Python提供了丰富的控制流程语句,包括条件语句(if、else)、循环语句(for、while)等,使得开发者能够...