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What should I do if java returns garbled characters?

Java returns garbled characters because the server's "charset" is not set to "UTF-8". The solution is to add "charset=UTF-8" before "PrintWriter out = response.getWriter();".

Apr 11, 2020 am 10:07 AM

java

How to deal with garbled code in Java background

The solution to Java background garbled characters: first convert the garbled string into the original string sequence according to the wrong encoding method, the code is "byte[] bs = .getBytes("ISO8859-1");"; then convert the original characters The string sequence can be converted into correct text according to the correct encoding.

Apr 11, 2020 am 10:00 AM

java

What does java development mean?

Java development means using Java to develop a series of "B/S" systems, including various office systems, various websites, power monitoring systems, reporting systems, etc.; Java software development is mainly divided into three directions, namely " JAVASE", "JAVAME" and "JAVAEE".

Apr 11, 2020 am 09:41 AM

java

What should I do if java cannot be started?

The solution to the problem that java cannot be started: first open "myeclipse" and click "File"; then select "Java Project" and name the project; then create a class file; finally enter the code "System.out.println(" in the main function ...")" and run it.

Apr 11, 2020 am 09:37 AM

java

How to download java

How to download java: First, directly search "jdk" on Baidu and click "Download"; then click "Next" as prompted; then right-click the computer, select "Properties", and click "Advanced System Settings"; finally, in the system environment variables Enter "JAVA_HOME" and click "Save".

Apr 11, 2020 am 09:26 AM

java

Where is java installed?

Java is installed on the C drive. How to find the java installation path: first open the command prompt; then enter the command "c:Enter"; then enter the command "\Enter"; finally enter the command "dir/a/s java.exe ” and press “Enter” to return to the java path.

Apr 11, 2020 am 09:15 AM

java

How to use java notepad

How to use java notepad: first create a new document on the desktop and change the txt suffix to "java"; then edit the content of "HelloWorld.java"; then enter the "CMD" command in the computer start bar to open the DOS command line ;Finally load and run the ".class" bytecode file.

Apr 11, 2020 am 09:08 AM

java

Introduction to strong references and weak references in java

This article comes from the Java Quick Start column. It introduces the relevant knowledge about strong references and weak references in Java. It has certain reference value and I hope it can help everyone. In the case of insufficient memory, the JVM will not recycle strongly referenced objects.

Apr 10, 2020 pm 03:50 PM

java weak quotation

How to install java environment

How to install the java environment: first download the "java jdk" program and double-click the program to install it; then right-click the mouse to open "My Computer" and find "Properties"; then open "Environment Variables"; finally change the variable name to "JAVA_HOME" and modify the variable value to "\jdk1.7.0_04".

Apr 07, 2020 am 10:15 AM

java

The difference between java and ui

The difference between Java and UI: 1. UI is the user interface, which is a relatively broad term. Basically, the interface displayed to the user by the software can be called UI; 2. Java is mainly used for the development of back-end service systems, but most The branches all have Java back-end systems, and the web front-end interface is the responsibility of a project team as an overall project.

Apr 07, 2020 am 09:56 AM

java ui

What is the difference between ios and java?

The difference between ios and java: 1. ios is a handheld device operating system developed by Apple; 2. java is an object-oriented programming language that can write cross-platform application software; 3. ios development is mainly used in mobile ios Platform development, testing, upgrade and maintenance, etc., while Java technology is more widely used.

Apr 07, 2020 am 09:47 AM

java

What are the Java software

Java software includes: 1. JDK, the product of installing the Java environment; 2. Intellij IDEA, an IDE that is highly popular among Java developers; 3. Eclipse, a free IDE; 4. NetBeans, an Oracle company Production IDE and so on.

Apr 05, 2020 am 09:48 AM

java

How to write java script

How to write a java script: first open the java editor; then write the java code as "import java.io.file; import java.io.filenotfoundexception;"; finally execute the script file and preview the running effect through the browser.

Apr 05, 2020 am 09:15 AM

java

Examples to explain the integer and int types in java

This article comes from the Java Quick Start column. It explains the integer and int types in Java with examples. It has certain reference value and I hope it can help you. The Integer type is an object class, which is a boxed package of the basic type of int.

Apr 03, 2020 pm 03:58 PM

int integer java