Java代码测试代码性能测试工具测试卷

Java代码测试代码性能测试工具测试卷```javaimportjava.util.ArrayList;importjava.util.List;importjava.util.Random;publicclassPerformanceTest{publicstaticvoidmain(String[]args){//初始化数据intdataSize=1000000;List<Integer>testData=newArrayList<>(dataSize);Randomrandom=newRandom();for(inti=0;i<dataSize;i++){testData.add(random.nextInt(dataSize));}//测试排序算法性能testSortingAlgorithm(testData);//测试搜索算法性能testSearchingAlgorithm(testData);}privatestaticvoidtestSortingAlgorithm(List<Integer>testData){//深拷贝测试数据List<Integer>dataForSort=newArrayList<>(testData);//记录开始时间longstartTime=System.currentTimeMillis();//执行排序算法dataForSort.sort(Integer::compareTo);//记录结束时间longendTime=System.currentTimeMillis();//输出排序算法性能System.out.println("Sortingalgorithmperformance:"+(endTime-startTime)+"ms");}privatestaticvoidtestSearchingAlgorithm(List<Integer>testData){//深拷贝测试数据List<Integer>dataForSearch=newArrayList<>(testData);//记录开始时间longstartTime=System.currentTimeMillis();//执行搜索算法intsearchValue=dataForSearch.get(dataForSearch.size()/2);intindex=binarySearch(dataForSearch,searchValue);//记录结束时间longendTime=System.currentTimeMillis();//输出搜索算法性能System.out.println("Searchingalgorithmperformance:"+(endTime-startTime)+"ms");}privatestaticintbinarySearch(List<Integer>data,intvalue){intlow=0;inthigh=data.size()-1;while(low<=high){intmid=(low+high)>>>1;intmidVal=data.get(mid);if(midVal<value){low=mid+1;}elseif(midVal>value