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Properties prop = new Properties();
try {
InputStream in = Object.class.getResourceAsStream("/resource.properties");
prop.load(in);
System.out.println(prop.getProperty("db.driver.class"));
System.out.println(prop.getProperty("db.url"));
System.out.println(prop.getProperty("db.username"));
} catch(IOException e) {
e.printStackTrace();
}