Question

Whenever I try to load a properties file by below method. I get an error on getClass() as-

Cannot make a static reference to the non-static method getClass() from the type Object

public static void main(String[] args) {

        ---
        ---

    loadProperties(line);

}

private static void loadProperties(String line) {
        Properties prop = new Properties();
        InputStream in = getClass().getResourceAsStream("foo.properties");
        try {
            prop.load(in);
            for(Object str: prop.keySet()) {
                Object value = prop.getProperty((String) str);
                System.out.println(str+" - "+value);
            }
            in.close();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }


    }

Any suggestions how can I overcome this.

Answer 1

You can’t call getClass from a static method. You either need to do this in a non-static method:

class MyClass {
   public static void main(String[] args) {
      MyClass obj = new MyClass();
      obj.loadProperties(line);    
   }

   private void loadProperties(String line) {
        Properties prop = new Properties();
        InputStream in = getClass().getResourceAsStream("foo.properties");
        ...  
   }
}

or use a class literal, which does work in a static context, e.g.

InputStream in = MyClass.class.getResourceAsStream("foo.properties");