Update readme.md

HunorVadaszPerhat · Apr 18, 2023 · 2134a85 · 2134a85
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 ## Super
 
 - [Calling a superclass constructor](#calling-a-superclass-constructor)
+- [Accessing method and variable of superclass](#accessing-method-and-variable-of-superclass)
 
 ### Calling a superclass constructor
 - can call a constructor in the superclass of the current class
 - often used in constructor chaining, where there are multiple constructors in a class that call each other using this(), and the final constructor calls a constructor in the superclass using super()
 
 ![Super call constructor](https://github.com/HunorVadaszPerhat/java_lang_specs/blob/main/images/super_call_constructor.png)
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+### Accessing method and variable of superclass
+- can access methods or variables in the superclass of the current class
+- useful when there is a method or variable with the same name in both the superclass and subclass and the one in the superclass should be referred to 
+
+![Accessing method and variable of superclass](https://github.com/HunorVadaszPerhat/java_lang_specs/blob/main/images/access_superclass_method_variable.png)
+