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We usually save the configuration parameters of Java applications in properties files. The properties files of Java applications can be a normal file based on key-value pairs with properties as the extension, or it can be an XML file. In this article In the case, we will introduce how to output property files in these two formats through Java programs, and how to load and use these two property files from the classpath. The following is the case program code: PropertyFilesUtil.javapackage com.journaldev.util; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.FileReader; import java.io
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