Page 37-JavaBase Programming Tutorials: Learn JavaBase Online-php.cn

Article Tags

JavaBase

Home

Technical articles

Java

JavaBase

Java garbled question mark solution

The garbled question mark in Java may be caused by the fact that the backend returns a json object, and the one passed to the frontend is a string type. We can change the return value to a json object to solve the problem.

Dec 17, 2019 pm 04:06 PM

java乱码

Java text garbled solution

Solution to garbled java text: You can use the "new String(garbled variable.getBytes("original encoding format"),"current encoding format");" code to solve the problem of garbled characters when using Scanner to type data and use the get method to send requests.

Dec 17, 2019 pm 03:49 PM

java乱码

Java submission garbled code solution

Solution to garbled code submission in java: 1. Submit in post mode and use the setCharacterEncoding method to set the encoding method. 2. When submitting in get mode, you can manually convert the encoding format after receiving the data.

Dec 17, 2019 pm 02:54 PM

java乱码

Conversion problem between parent class and subclass in java

This article uses the Java Quick Start column to introduce the conversion problem between parent classes and subclasses in Java. I hope it can help students who are confused about this issue. There is no way to force the conversion of parent class objects into subclasses in Java, but subclass objects can be converted into parent classes.

Dec 17, 2019 am 11:55 AM

java父类子类转换

How to read and write files in java to avoid garbled characters

Methods to avoid garbled characters when reading and writing files in java: 1. Read bytes in the character set specified by the file through the InputStreamReader class and decode them into characters. 2. Encode the characters written into bytes using the specified character set through the OutputStreamWriter class.

Dec 17, 2019 am 11:04 AM

java乱码

Java method to determine whether a string is json

You can use the JSONObject.parseObject() method in java to process strings. If an exception occurs when processing the string, it means that the string is not in json format.

Dec 16, 2019 pm 04:52 PM

javajson

Java method to determine whether a string is an integer

How to determine whether a string is an integer in Java: 1. Use the isDigit() function to determine whether all characters in the string are numbers. 2. Use regular expressions to judge. 3. Determine whether the string is an integer by using the ASCII codes of all characters in the string.

Dec 16, 2019 pm 04:33 PM

java

Solution to garbled file name of java download file

Solution to the garbled file name of Java downloaded files: Use different methods to encode the downloaded file name according to different browsers. IE and Edge browsers use the encode() method, and other browsers use the byte stream transcoding method.

Dec 16, 2019 pm 04:11 PM

java乱码

How to determine if strings are not equal in Java

In Java, if a string is not equal, you can use the equals() method. The equals() method is used to compare a string with a specified object. Returns true if the given object is equal to the string; false otherwise.

Dec 16, 2019 pm 02:17 PM

java字符串

How to intercept the last few characters of a string in java

To intercept the last few characters of a string in Java, you can use the substring method of the String class. There are two ways to use it: one is to intercept all characters at the specified position of the string and beyond. One is to intercept characters at the specified start and end positions.

Dec 16, 2019 pm 02:10 PM

java字符串

Java learning switch statement and loop statement

This article introduces the switch statement and loop statement with examples from the java zero-based introduction column. I hope it can help students who are learning java. The switch statement is used to determine whether a variable is equal to a value in a series of values. Each value is called a branch.

Dec 16, 2019 pm 12:01 PM

javaswitch语句循环语句

java is not recognized as an internal or external command solution

When the javac command prompt "not an internal or external command" is entered in cmd, it may be because the java environment variable is configured incorrectly. The solution is to use the set java_home, set classpath, and set path commands in cmd to configure the correct environment variables.

Dec 16, 2019 am 11:09 AM

java

Several ways to deal with garbled characters in java

Java's method of dealing with garbled characters: 1. When receiving parameters, decode according to ISO-8859-1 to obtain a binary stream, and then encode it with UTF-8. 2. Modify the server (tomcat) configuration and add UTF-8. 3. Set the request encoding when requesting in post mode.

Dec 16, 2019 am 10:44 AM

java乱码

Solution to garbled code displayed in java

Solution to Java displaying garbled codes: The browser calls jsp, html and other pages to display garbled Chinese characters. Solution: Save the file in UTF-8 format, and then set it to use UTF-8 for parsing in the browser.

Dec 16, 2019 am 10:08 AM

java乱码