http://www.iteye.com/topic/762637
http://www.iteye.com/topic/762312
http://www.iteye.com/topic/632481
这三个贴子说的同一件事.....
java -server TestFFF
用时16
java TestFFF
用时1537
效率100比1吧
http://www.iteye.com/topic/762312
http://www.iteye.com/topic/632481
这三个贴子说的同一件事.....
package com.maodaju.tools.effection;
public class TestFFF {
public static void main(String[] args) {
long start = System.currentTimeMillis();
for (int i = 0; i < 10000; i++) {
for (int j = 0; j < 1000; j++) {
for (int k = 0; k < 100; k++) {
int t = i*j*k;
}
}
}
long end = System.currentTimeMillis();
System.out.println(end-start);
}
}
java -server TestFFF
用时16
java TestFFF
用时1537
效率100比1吧