You can loop through the array elements with the for loop, and use the length property to specify how many times the loop should run.The following example outputs all elements in the cars array:ExampleGet your own Java Server String[] cars = {"Volvo", "BMW", "Ford", "Mazda"}; for ...
importorg.json.JSONArray;publicclassMain{publicstaticvoidmain(String[]args){JSONArrayjsonArray=newJSONArray();jsonArray.put("element1");jsonArray.put("element2");jsonArray.put("element3");System.out.println("Using for loop:");for(inti=0;i<jsonArray.length();i++){Stringelement=jsonArray....
importorg.json.JSONArray;importorg.json.JSONException;publicclassMain{publicstaticvoidmain(String[]args){StringjsonStr="[{\"name\":\"Alice\",\"age\":18,\"score\":90}, {\"name\":\"Bob\",\"age\":19,\"score\":85}]";try{JSONArrayjsonArray=newJSONArray(jsonStr);// 在这里使用fore...
To loop through an array in javascript, you can use for loop which the syntax is almost the same as in other languages such as java, c++, php, etc. There is also the forEach function that comes with array objects. The regular for loop is friendly to prog
aai.appendLoopOnAppenders(e); }catch(InterruptedException ie) {break; } }//(12)到这里说明该线程被中断,则把队列里面的剩余日志任务//刷新到磁盘for(E e : parent.blockingQueue) { aai.appendLoopOnAppenders(e); parent.blockingQueue.remove(e); ...
实现循环队列的第一步:<新建一个LoopQueue<E>实现Queue<E>接口> 1privateE[] data;//存储数据的数组2privateintfront;//队列头3privateinttail;//队列尾元素的下一个位置4privateintsize;//记录数据总长度5publicLoopQueue(intcapacity) {6data = (E[])newObject[capacity + 1];7}89publicLoopQueue() {...
通过不加锁的方式实现的队列都是无界的(无法保证队列的长度在确定的范围内) 而加锁的方式,可以实现有界队列 在稳定性要求特别高的系统中,为了防止生产者速度过快,导致内存溢出,只能选择有界队列同时,为了减少Java的垃圾回收对系统性能的影响,会尽量选择array/heap格式的数据结构。这样筛选下来,符合条件的队列就只有Arr...
int loopCount = 1000000; int count = copyOnWriteArrayList.size(); stopWatch.start("Read:copyOnWriteArrayList"); IntStream.rangeClosed(1, loopCount).parallel().forEach(__ -> copyOnWriteArrayList.get(ThreadLocalRandom.current().nextInt(count))); ...
System.outJSONObjectJSONArraySystem.outJSONObjectJSONArrayloop[for each element]jsonArray = new JSONArray("[{\"name\":\"Alice\",\"age\":25},{\"name\":\"Bob\",\"age\":30}]")jsonArray.length()jsonArray.getJSONObject(i)name = jsonObject.getString("name")age = jsonObject.getInt(...
With this, the next loop runs faster. std::sort(data, data + arraySize); // Test clock_t start = clock(); long long sum = 0; for (unsigned i = 0; i < 100000; ++i) { for (unsigned c = 0; c < arraySize; ++c) { // Primary loop. if (data[c] >= 128) sum += ...