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Generate non repetitive random number sequence within the specified range (exclusion method, screening method)
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Java gets the current path and reads the file
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MD5 encrypting and validating Java programs
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Implementation of Java quick sorting algorithm
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JDBC connects to the MySQL database and executes the insert statement to obtain the self growing primary key value
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Java example of importing CSV file into MySQL table
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Introduction to Apache commons exec and implementation of simple ping command method call
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A small example of using quartz in spring
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Java operation file class (file decompression, file addition, deletion, modification and query)
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Regular expression validation date format in Java
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Httpclient tool class
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Java random number generation method (range, distribution mode, type and seed can be specified)
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Java Sketchpad drawing program
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Java thread priority example
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The Java screenshot tool captures the screen
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Code for generating verification code in Java
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Java date traversal
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Image processing java tool class (zoom, fillet, reflection)
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Java implementation of file directory compression
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Java extracts metadata information of photos
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Java calculator
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Image compression, thumbnail generation Java class
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Java calls the browser to open the URL (supports Mac, UNIX, Linux, windows)
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Upload files to FTP server Java code
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Simple java crawler crawling web page implementation code
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Jpg image file scaling Java class (scale by specified scale, scale by specified width and height)
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Dom4j parsing XML file example
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Java RSA encryption class
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FTP upload and download Java implementation
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Java 32-bit MD5 encryption class
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Java countdownlatch thread helper class
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Java text file encryption and decryption class
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