Java

Java Interview questions --Hibernate

Hibernate How it works and why it works ? Read and parse configuration file read and parse mapping information , establish SessionFactory open Sess...
2019-04-04 10:05 views 17

Java Interview questions --Junit

How to test static methods ?a） take private Method to default （ because default Access modifiers are accessed in the same package ）b） Using refl...
2019-04-04 09:55 views 20

java properties Profile tool class

1. Create tool class package com.ljw.util;import java.io.IOException;import java.io.InputStream;import java.util.Properties;/** * Properties Profi...
2019-04-03 15:35 views 8

Java Interview questions --shiro

Shiro What can be done ?Shiro It can help us finish ： authentication , to grant authorization , encryption , session management , And Web integrat...
2019-04-02 14:23 views 48

【Java Basic 】String,StringBuffer and StringBuilder The difference between

String Class is immutable , Once a String After the object is created , The sequence of characters contained in this object is immutable , Until th...
2019-03-30 23:26 views 27

Java——char Types and strings

char Type in Java in char Type describes UTF-16 A unit of code in coding , Unless you really have to deal with it UTF-16 Code unit , It is best to ...
2019-03-28 13:45 views 28

about java Of GUI Simple switching interface

about java Of GUI Simple switching interface At the beginning of learning java Of gui Interface design because the textbook does not have relev...
2019-03-26 20:00 views 26

JAVA Three ways to create Multithread

One , summary stay JAVA in , use Thread Class represents a thread , All thread objects , All have to be Thread Class or Thread An instance of a...
2019-03-03 16:24 views 21

centos7 deploy springboot jar package

1, rename jar file  mv facetool-0.0.1-SNAPSHOT.jar  facetoolserver.jar2, Add run permission  sudo chmod 777 facetoolserver.jar3, Add to service con...
2019-02-18 10:01 views 64

Student management system Add, delete, change and search

The steps of student management system are as follows ：A: Define student class B: The main interface code of student management system C: Student ...
2019-02-07 15:49 views 211
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