public class SortingTimeTest {
public static void main(String[] args) {
// TODO 自动生成的方法存根
Stopwatch time = new Stopwatch();
int[] arrays = new int[100000];
long time1;
long time2;
for (int i = 0;i < arrays.length;i++){
arrays[i] = (int)(Math.random() * 100000);
}
time1 = time.start();
System.out.println(time1);
java.util.Arrays.parallelSort(arrays);
time2 = time.stop();
System.out.println( time2);
}
class Stopwatch {
private long startTime ;
private long endTime ;
java.util.Date date = new java.util.Date();
public Stopwatch(){
startTime = 0;
}
public long start(){
startTime = date.getTime();
return startTime;
}
public long stop(){
endTime = date.getTime();
return endTime;
}
public long getElapsedTime(){
return endTime - startTime;
}
}
}
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