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Introduction to solutions to garbled java file downloads

Solution to garbled java file download: 1. Use the encode() method in IE or a browser with IE as the core to transcode the file name to solve the problem. 2. Convert the file name to a string in non-IE browsers, and then transcode the string to solve the problem.

Nov 29, 2019 am 10:11 AM

java

How to determine whether a string is a date in java

How to determine whether a string is a date in java: first customize the date format, and then use the DateFormat class or SimpleDateFormat class to determine whether it is the correct date format to determine whether it is a date.

Nov 29, 2019 am 09:44 AM

java

How to get the day of the week for a specified date in java

The way to get the day of the week for a specified date in "java" is: first define an array to save the day of the week information, then instantiate a calendar class object, then get the day of the week correctly by calling "Calendar.DAY_OF_WEEK", and finally use "if" The statement can be further judged.

Nov 29, 2019 am 09:32 AM

java 指定日期星期几

Reasons and solutions for reading Chinese garbled characters in Java files

The reason why Java reads Chinese garbled files is because the encoding format is not set when reading the file, and the local encoding format is used by default. Solution: Specify the encoding format of the data stream when reading the data stream in Java to solve the problem of garbled characters.

Nov 29, 2019 am 09:30 AM

java

Java determines whether a file directory exists (code attached)

In Java, you can use the exists() method to determine whether the file or directory represented by the abstract path name exists, and then use the isDirectory() method to check whether the object is a folder. If it is a folder, it returns true, otherwise it returns false.

Nov 29, 2019 am 09:17 AM

java

Detailed explanation of events in java with pictures and texts

The Java language uses an authorized event model to process events. Under this model, each component has corresponding events, such as a click event for a button, a content change event for a text field, etc. This article explains events in java in detail.

Nov 28, 2019 pm 05:35 PM

java

Set timeout for Socket in Java

Socket, also known as socket, is a protocol, convention or specification for network communication between different processes. This article introduces in detail the two methods of setting timeout for Socket in Java, and introduces the differences between the two methods.

Nov 28, 2019 pm 05:17 PM

Java

How to solve sorting problem using quick sort in divide and conquer method in java

This article is recommended by the Java introductory tutorial column. It explains how to use quick sort to solve sorting problems with examples. Everyone is welcome to exchange and discuss. The basic idea of quick sort is based on the divide-and-conquer strategy, and its algorithmic ideas are: 1. Decomposition; 2. Governance; 3. Merge.

Nov 28, 2019 pm 03:45 PM

java 分治法快速排序

A detailed introduction to String, a common class in Java

This article introduces the commonly used class in Java - String from the java introductory column. I hope it can help students in need. The "java.lang.String" class represents strings, and all string literals in Java programs (such as "abc") can be regarded as instances that implement this class.

Nov 28, 2019 pm 03:30 PM

java 常用类 String

Commonly used classes in java——Arrays

This article introduces the commonly used class in Java - Arrays in detail from the java introductory program column. I hope it can help you. The "java.util.Arrays" class contains various methods for operating arrays, such as sorting and searching. All its methods are static methods and are very simple to call.

Nov 28, 2019 pm 03:15 PM

java 常用类 Arrays

How to append elements to a one-dimensional array in java

This article demonstrates for everyone how to append elements to a one-dimensional array. Welcome to visit the java zero-based entry column. When appending new elements to a one-dimensional array, a temporary array is generally created first, then the new element is added, and finally the temporary array address pointer reference is assigned to the original array.

Nov 28, 2019 pm 02:47 PM

java 一位数组追加元素

java array one-dimensional array

This article is recommended by the Java introductory learning column and introduces some relevant knowledge about one-dimensional arrays in detail. Java performs out-of-bounds checks on array elements to ensure safety. If the array element subscript is less than 0, greater than or equal to the array length, an exception will be generated.

Nov 28, 2019 pm 02:36 PM

java 数组一维数组

Determine whether a folder exists in java, create it if it does not exist

In "java", the method to determine whether a folder exists or create it if it does not exist is: first save the folder path that needs to be determined into an object, and then call the "exists" and "isDirectory" methods to determine whether it is a folder and whether it exists. , if it is not a folder or does not exist, call the "mkdir" method to create the folder.

Nov 28, 2019 am 11:48 AM

java 判断文件夹存在创建

Garbled characters appear when reading text files in java

The reason for garbled characters when reading text files in "java" is: "java" uses the default character set in the local environment when reading the data stream. The solution is: when "java" reads the data stream, it must specify the encoding method of the data stream, for example: "UTF-8".

Nov 28, 2019 am 11:18 AM

java 读取文本文件乱码