- public class LongTest {
- public static void main(String[] args) {
- LongTest test = new LongTest();
- test.test1();
- test.test2();
- }
- public void test1(){
- long sum = 0L;
- long t1 = System.currentTimeMillis();
- for(long i = 0;i<Integer.MAX_VALUE;i++){
- sum +=1;
- }
- System.out.println("test1执行时间:"+(System.currentTimeMillis() - t1)/1000+"s");
- }
- public void test2(){
- Long sum = 0L;
- long t1 = System.currentTimeMillis();
- for(long i = 0;i<Integer.MAX_VALUE;i++){
- sum +=1;
- }
- System.out.println("test2执行时间:"+(System.currentTimeMillis() - t1)/1000+"s");
- }
- }
- //该片段来自于http://www.codesnippet.cn/detail/070320148891.html
来源: http://www.codesnippet.cn/detail/070320148891.html