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What are the built-in objects of JSP?

The built-in objects in JSP include: out application, request application, access customer data, response application, session application, application application, obtaining configuration objects in web.xml, obtaining exception information, etc.

Apr 16, 2019 am 10:34 AM

JSP内置对象

The second step of idea learning is the initial installation. It is strongly recommended to modify the configuration.

Through the first step of learning idea before, everyone knows how to install idea. This article mainly talks about the configuration that the editor strongly recommends to modify after the initial installation. I hope you will accept it.

Apr 10, 2019 am 10:44 AM

ideajava配置

Two ways to pass java method parameters

There are two ways to pass method parameters in Java, pass by value and pass by reference.

Apr 08, 2019 pm 01:43 PM

java传递方式

What methods does thread class have?

Methods in the Thread class can be divided into instance methods and static methods. Instance methods include start() method, run() method, etc. Static methods include currentThread() method, sleep(long millis) method, etc.

Apr 08, 2019 pm 01:42 PM

thread类

What is Spring boot

Spring Boot is an extension of the Spring framework. It eliminates the boilerplate configuration required to set up Spring applications, makes it easy and fast to configure and run applications, and also simplifies dependency management, making development more convenient.

Apr 02, 2019 pm 02:51 PM

Spring boot

What is the difference between & and && in Java?

The difference between & and && in Java is: in the && operation, when the first expression is false, the following expression will not be executed; while the & operation will execute the latter expression regardless of whether the first expression is true or not.

Mar 29, 2019 pm 03:20 PM

&、&&

How much does java training tuition cost?

The tuition fee for Java training is not fixed. The tuition fee will fluctuate according to the individual's basic level. If you have a certain foundation, you can reduce the number of basic courses in course selection, and the cost will be relatively lower. The Java training learning cycle is generally Study for 4 to 6 months, and the tuition fee is about 10,000 yuan.

Mar 12, 2019 pm 04:29 PM

javajava培训学费

What are j2ee and java? What is the difference between j2ee and java

What are j2ee and java? Is j2ee javaee? What is the difference between j2ee and java? The following PHP Chinese website will summarize the above issues for you.

Mar 07, 2019 pm 05:21 PM

j2eejava

In-depth understanding of Java virtual machine

JVM memory area When we write programs, we often encounter problems such as OOM (out of Memory) and memory leaks.

Mar 18, 2017 pm 05:52 PM

Java虚拟机

Java serialization Serializable

Mar 18, 2017 am 11:35 AM

Java Serializable 序列化

Java Design Pattern—Factory Design Pattern

Factory pattern: Mainly used to instantiate classes with a common interface. The factory pattern can dynamically determine which class should be instantiated.

Dec 15, 2016 pm 01:46 PM

Java工厂设计模式

Java quick sort

public static void quickSort(double[] array, int i, int j) { if (j <= i) return; int pivotIndext = (i + j) / 2; swap(array, pivotIndext, j); int k = partition(array, i - 1, j, a ...

Dec 03, 2016 am 11:58 AM

Java 快速排序 Java快排

JavaWeb learning summary_Servlet development

Dec 02, 2016 pm 04:25 PM

JavaWeb

The java virtual machine runs the jar file directly

1. Select the java file, right-click and select export---> select jar file and click next 2. Check export generated class files and resources and export java source files and resoures and then enter the save path in jar file: and click next 3. Default Click next, click next again, click main cla...

Dec 02, 2016 pm 12:04 PM

java java虚拟机直接运行jar文件