JVM性能优化指南 JVM常用命令 jps 查看java进程 The jps command lists the instrumented Java HotSpot VMs on the target system. The command is limited to reporting information on JVMs for which it has the access permissions. jinfo (1)实时…
一、移位的妙用
1.位1的个数 思路:
利用一个数和1与操作,结果就是最低位的特点,每次右移都能知道一位是不是1
public class Solution {// you need to treat n as an unsigned valuepublic int hammingWeight(int n) {int count 0;for(in…
一、下载:
官网:Python Releases for Windows | Python.org 二、安装
双击下载的安装程序文件。这将打开安装向导。安装界面图下方两个框的" Use admin privileges wheninstalling py. exe和” Add python. exe to PATH"都要勾选,一定要勾选!一定要勾选…