Programmer Think

prefaceHello, I'm Lin Sanxin. The most difficult knowledge point in the most easy to understand words is my motto. The foundation is advanced, and the premise is my original intentionSchool recruitment in those yearsI vaguely remember that when I participated in the school recruitment of a large factory, I interviewed Netease Leihuo studio. At ...

Multithreading overview 1, The concept of multithreading Multithreading means that a program contains multiple execution units, that is, multiple different threads can be run simultaneously to perform different tasks in a program, that is, a single program is allowed to create multiple parallel threads. 2, Using multithreading The program n ...

40. Implement queue with stack As stated in the title, you can only use two stacks to implement some operations of the queue. The queue should support push(element), pop() and top(), where pop is the first (foremost) element in the pop-up queue. Both pop and top methods should return the value of the first element. class MyQueue: ...

1. What is distributed lock Distributed lock is a way to control synchronous access to shared resources between distributed systems. In distributed systems, it is often necessary to coordinate their actions. If different systems or different hosts of the same system share one or a group of resources, when accessing these resources, they often ...

Classic logic questions in software testing Question 1: it takes 1 hour to burn an uneven rope from head to tail. Now there are several ropes of the same material. How to use the method of burning the rope to time 1 hour and 15 minutes? Now take three different ropes. A Rope, B Rope, C Rope Step 1: A The rope burns from both ends at the same ...

preface The strength of MyBatis lies in its mapper file, which is the magic of MyBatis. For any user of MyBatis, the mapping file of MyBatis must be mastered. Mapper file label One of Mapper provides nine top-level tags. We don't need to know about one that has expired. The other eight must be mastered. As long as we master the use of tags, ...

In the previous article, I have published common interview questions. Here I spent some time sorting out the corresponding answers. Due to my limited personal ability, it may not be in place. If there are unreasonable answers, please give me some advice. Thank you here. This paper mainly describes the concurrent HashMap, a high-frequency inter ...

In the previous article, I have published common interview questions. Here I spent some time sorting out the corresponding answers. Due to my limited personal ability, it may not be in place. If there are unreasonable answers, please give me some advice. Thank you here. This article mainly describes the collection content that is almost necess ...

1. Background The interviewer asked how to pause a thread Tell me about your understanding of park 2. Code package com.ldp.demo01; import com.common.MyThreadUtil; import lombok.extern.slf4j.Slf4j; import java.util.concurrent.locks.LockSupport; /** * @author Blog emperor posture * @address https://www.cnblogs.com/newAndHui/ * @WeChat 8512 ...

I wish you all good health and happiness in the new year. According to the observation and experience in the past decades, congratulations alone can't make people rich. Only when we successfully find a good job and win a satisfactory career can we have the opportunity to make money. Being able to enter a good enterprise is naturally a reasonabl ...