How to know the compiled version of jar file or class file? To know the complied version of the jar file or class file below is the code. You have to run the MainClass and pass the file name in the argument. You have to put jar or class file in same path of MainClass file. import java.io.DataInputStream; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.nio.file.CopyOption; import java.nio.file.Files; import java.nio.file.Path; import java.nio.file.Paths; import java.nio.file.StandardCopyOption; import java.util.Enumeration; import java.util.jar.JarEntry; import java.util.jar.JarFile; import java.util.logging.Logger; public class CheckVersionUtil { private static final Logger LOGGER = Logger.getLogger(CheckVersionUtil.class.getSimpleName()); public static void copyToTemp(String destinationDir, String srcFile) throws IOException { LOGGER.info(...
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