Troubleshooting Java "Error: encoding GBK non-mapped characters"

Reprint: http://blog.csdn.net/l1028386804/article/details/46583279

In the CMD console compile times Error: encoding GBK non-mapped characters

Check:

1, check the local locale language setting Chinese no problem

2. This program can run normally on eclipse

Right-click Properties-resource-text file encoding is UTF-8

Workaround:

1. Operation is using javac-encoding UTF-8 Demo.java

===> compile and run the code through

2. Notepad open Java source file, save as Select ANSI encoding

===> also compiles and runs code through

Description

ANSI: American National Standards Association, the system preset standard text storage format. Simplified Chinese coding GB2312, which is actually a code page for ANSI 936

UTF-8: Universal Character Set conversion format, which is an encoding designed for transmission, 2 binary, encoding Unicode in 8-bit units, and selecting the UTF-8 format if you are using legacy transport media that can only support 8 bits of important data within a homogeneous bit group.

In UTF-8, the English characters are still the same as ASCII encoding, so the original library can continue to be used. The encoding range for Chinese is between 0080-07ff, so it is 2 bytes (but the two bytes and GB encoded two bytes are different), and the UTF encoding can be processed with a specialized Unicode processing class.

Code:

1  Public classhelloworldwww{2           Public Static voidMain (String args[]) {3                 intNum;//declares an integer variable num4num = 3;//assigning an integer variable to a value of 35                //output string, where the "+" sign is used to connect the variable6System.out.println ("This is the number" +num);7System.out.println ("I have the +num+" book!) ");8          }9  Ten}

View Code

1 /*2 # @Time: 2018-8-3 19:163 # @Author: XXX4 # @Mail: [email protected]5 # @Function: Java uses a For loop to traverse the print array and time delay to implement the countdown6 */7 8 ImportJava.util.concurrent.TimeUnit;9 Ten  Public classDemo { One      Public Static voidMain (string[] args)throwsException { A          for(inti = 10; I >= 0; i--) { -TimeUnit.SECONDS.sleep (1); - System.out.println (i); the         } -     } - } -  + /* - Java uses javac compile times error: unreported exception java.net.MalformedURLException; it must be snapped or declared to throw + andymacbookpro:push andy$ javac Push.java A Push.java:7: Unreported exception java.net.MalformedURLException; must be snapped or declared to throw at url = new URL (urlstr); -              ^ - 1 Error - you need to include the following statement in your code: - throws Exception -  in or add the Try{}catch () {} block to the code. -  to Reference: + Javac compile times Error in Java: Unreported exception java.net.MalformedURLException; must be snapped or declared to throw-csdn blog38701907 -  the */

Java code with Chinese characters or Mandarin notes

Troubleshooting Java "Error: encoding GBK non-mapped characters"