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  • springboot+quartz implements scheduled tasks in a persistent manner
    springboot+quartz implements scheduled tasks in a persistent manner
    This article mainly introduces the relevant knowledge of springboot+quartz to implement scheduled tasks in a persistent manner. This article introduces it to you in great detail through example code. It has certain reference value for everyone's study or work. Friends who need it can refer to it. Down
    JavaBase 2977 2020-07-27 18:33:19
  • Eclipse adds servlet template process code
    Eclipse adds servlet template process code
    This article mainly introduces the detailed code of the process of adding servlet templates in Eclipse. The article introduces it in great detail through sample code. It has certain reference learning value for everyone's study or work. Friends who need it can refer to it.
    JavaBase 2509 2020-07-27 18:26:56
  • What is the difference between Struts2 and SpringMVC?
    What is the difference between Struts2 and SpringMVC?
    The differences between Struts2 and SpringMVC: 1. The development efficiency and performance of SpringMVC are higher than Struts2; 2. The amount of configuration files of Struts2 is larger than that of SpringMVC; 3. Struts2 is more in line with OOP programming ideas; 4. SpringMVC integrates Ajax.
    JavaBase 2203 2020-07-27 16:29:23
  • Java implementation of address book management system tutorial
    Java implementation of address book management system tutorial
    This article mainly introduces the implementation of address book management system in Java in detail. The sample code in the article is introduced in great detail and has certain reference value. Interested friends can refer to it.
    JavaBase 4625 2020-07-24 17:37:41
  • Detailed explanation of Spring Boot hot deployment Devtools
    Detailed explanation of Spring Boot hot deployment Devtools
    This article mainly introduces the analysis of the Spring boot hot deployment devtools process. The article introduces it in detail through sample code. It has certain reference learning value for everyone's study or work. Friends in need can refer to it.
    JavaBase 2412 2020-07-24 17:19:33
  • Usage of Random class in Java
    Usage of Random class in Java
    The Random class in Java is mainly used to generate random numbers. It is usually combined with some other methods to generate the required random numbers. The methods of this class include "nextBoolean" to produce uniformly distributed boolean values, "nextDouble" to generate random Double, etc. .
    JavaBase 4130 2020-07-24 16:21:52
  • What are the states of java threads?
    What are the states of java threads?
    There are five states of java threads: 1. Initial state. 2. Runnable state, located in the runnable thread pool, waiting to be selected by thread scheduling to obtain the right to use the CPU. 3. Running status. 4. Blocked state means that the thread has given up the right to use the CPU for some reason. 5. In the death state, the dead thread cannot be resurrected.
    JavaBase 6915 2020-07-24 11:37:26
  • JVM-Getting Started Chapter 1
    JVM-Getting Started Chapter 1
    1. Basic concepts JVM is the abbreviation of Java Virtual Machine. JVM is a specification for computing devices. It is a fictitious computer that simulates various computer functions on an actual computer. realized. 2. java -help command parameters                                                                                
    JavaBase 205 2020-07-27 11:26:25
  • How does Javaweb use getPart to receive form files?
    How does Javaweb use getPart to receive form files?
    This article mainly introduces the analysis of the process of using getPart to receive form files in Javaweb. The article introduces it in great detail through sample code. It has certain reference learning value for everyone's study or work. Friends who need it can refer to it.
    JavaBase 3288 2020-07-22 17:45:24
  • Java lastIndexOf principle analysis
    Java lastIndexOf principle analysis
    This article mainly introduces the analysis of the usage method of Java lastIndexOf class. The article introduces it in great detail through sample code. It has certain reference learning value for everyone's study or work. Friends who need it can refer to it.
    JavaBase 3437 2020-07-22 17:41:02
  • What is the java print output statement?
    What is the java print output statement?
    The print output statements include: "System.out.println();" is printed with a new line, "System.out.print();" is printed without a new line, "System.out.write();" is printed by the byte, and "System.out.write();" is printed by the format. System.out.printf();".
    JavaBase 8947 2020-07-21 10:35:55
  • What is method overloading?
    What is method overloading?
    Method overloading refers to defining multiple methods with the same name in a class, but each method is required to have different parameter types or number of parameters. ​Method overloading can occur either in ordinary methods or in constructor methods. Method overloading can occur in the same class or in parent and child classes.
    JavaBase 6015 2020-07-18 13:32:43
  • What are the eight basic data types of java?
    What are the eight basic data types of java?
    The eight basic data types of Java are: byte (bit), short (short integer), int (integer), long (long integer), float (single precision), double (double precision), char (character), boolean.
    JavaBase 5039 2020-07-15 17:55:27
  • What is newline character in java
    What is newline character in java
    The newline characters in java are [\n] and [\r]. The difference between the two is: [\r] means carriage return, [\n] means new line, but both can achieve line breaks. The specific implementation method is: [System.out.print("\n")].
    JavaBase 26464 2020-07-11 13:19:24
  • Do variables in Java have to be defined before they are used?
    Do variables in Java have to be defined before they are used?
    Variables in Java must be defined before being used. When a variable is used, it can be initialized while declaring the variable, or it can be declared first and then assigned. A variable can only be assigned one value, but it can be modified multiple times. Variables defined in the main method must be assigned a value before they can be output.
    JavaBase 12476 2020-07-11 10:24:01

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