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Hi everyone it is literally all we're going to go ahead and continue building our fourth Android application.



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Let's go actually inside this Leppert class.



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And as you can see this is our first class.



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OK.



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So first as you know Leppert is inside the chad family animals.



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OK.



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So we can actually extend from the cat class here extends.



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OK and we can actually inherit all of the features and behaviors that are inside this math class.



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OK.



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So as you can see here first let's actually create a characteristic that is only specific to this first



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class.



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Ok for example a leopard has sharp claws.



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OK.



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So you can't just create a private strength and the name of my instance variable is class assignment



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operator.



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And then I put into double quotes here and then instead of double quotes I can just type in shot.



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OK so now let's actually create a constructor OK for this leper's class.



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So first of all I need to type in public.



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And then the name of my constructor must be the same as the name of this class.



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And then I actually open and close this constructor by using these curly braces.



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OK so first of all I need to actually initialize the constructor of the superclass because this leper's



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class is is actually inheriting all of the features and behaviors that are inside this chat class into



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These are Lepus class we need to actually initialize the constructor that is inside.



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These are trans class here.



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OK.



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As you can see we've got a custom constructor in this class so we need to actually initialize this constructor



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here.



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OK.



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So I can just take it super And then inside the prentices I need to actually pass some arguments here.



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OK let's actually specify these arguments here for this Leppert constructor.



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So the first argument should be of types 3 and name.



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OK.



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Again the second argument should be of types 3 inch color comma.



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OK.



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So let's actually go inside this class and see are there arguments.



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OK.



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Name calling and I'm out of speed.



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OK.



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So int amount of speed comma end amount of power.



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OK come on.



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Let's the other arguments.



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A number of lakes and can hunt other animals.



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OK.



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And number of legs



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comma and Boullion Chan hunt other animals.



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OK.



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OK.



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So let's actually create new line here and inside Apprentice's here for the super.



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I can just passing these values.



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Name comma color comma amount of speed comma.



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Amount of power.



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OK.



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Comma number of Lex comma Trahant other elements.



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So as you can see here if you have successfully initialized the constructor of the superclass.



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OK so now we can actually initialize.



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So now we can actually initialize this class instance variable.



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Can actually give values to our instance variables or we can actually just don't give a value to this



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instance variable.



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And when we actually create an object from the Slipper's class which has passed a value for these class



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instance variable OK.



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So for this class instance variable.



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Let's actually create an argument here.



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So strange class.



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OK.



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And now I can actually initialize this instance variable here so I can just refer to this to this instance



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variable by just typing this.



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That class assignment operator class.



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So hopefully that makes sense and then I can actually create a set here and they get in my bed for this



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class instance variable.



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So let's actually right click on these chat class outside of this constructor here and then click on



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generate and and click on get her and set her and then choose this class instance variable and then



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click on OK.



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This is a get here for this class instance variable.



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And this is all set up for this class instance variable.



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Ok so now let's actually override the two history if it that we actually inherit from the math class



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and the class inherit the twittering Meffert from the Animal class and the Animal class inherits these



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to a string Meffert from the Object class.



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OK.



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So this Leppert class in indirectly inherits all of the behaviors and features that are inside this



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object class.



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OK.



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So hopefully that makes sense.



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So let's actually go inside the Leppert class and let's actually referred to this method here and now



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as you can see it says Return superb that stream.



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OK.



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So super refers to that superclass.



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So the superclass is chat's as you can see this is our Meffert that is inside this CAD class.



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So it's can actually execute this line of code here.



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OK.



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And then we can actually put a plus operator here.



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Strange dot format.



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And then inside the prentices I can just put in two double quotes here.



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First I need to actually specify the formatting instructions here and then we need to actually pass



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arguments.



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OK.



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So percent as Colan percent B.



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And then I put a comma here and then I put two double quotes in order to actually putting a string literal



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here in order to relate this string literal to these.



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US is talking here OK.



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Percent.



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So I can just typing class and then I actually put in a comma here and then I need to actually put in



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here an argument of type Boolean.



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So I can just refer.



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So here I just put in percent as Colan percent S OK.



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And then I put in a comma here.



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So first I need to actually put in a string literal here in order to relate this string literal to the



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spoken here person s so I can just type in class OK.



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And then I put in a comma here and then I need to actually again put in an argument of types here which



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we can relate that argument to this token here percent.



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OK.



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So this is our instance variable.



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So I can't just refer to this instance variable clause.



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So as you can see here now are twisting if it is ready.



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OK.



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But just one line of code we have managed to successfully put in our own implementations and then we



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can actually output the value of these value as art to the screen.



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OK.



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So here as you can see with it just typing here super.



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That was three.



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And then this can actually execute the implementation of steadily inside these two string Meffert inside



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this class.



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OK.



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So this is our implementation as you can see here.



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So let's actually go inside this main activity that Jawa here and then let's actually create an object



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from.



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Let's have the class.



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OK.



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So I can just type in here Leppert and the name of my object is my Leppert and and I put in an assignment



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operator here.



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New Leppert.



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And here we need to actually passing this instance these values here.



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OK.



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So the value of the first argument should be of types 3.



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And here we need to actually specify the name of our object.



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So I can't just put into double quotes here inside the double quotes.



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I can just type in my Leppert.



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OK.



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And then I put in a comma here and then I need to actually again put in a value of type string here.



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And here we need to actually specify the color of our leapers.



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OK.



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So I can't just put into double quotes here.



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For example yellow and then putting a comma here again as now I need to actually specify the amount



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of speed of our Leppert object.



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For example 400 and then putting a comma here and now I need to actually specify the amount of power



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of our Leppert here.



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So I can just put in a value of type Integer for example 200 comma.



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Now I need to specify the number of legs of our object which is of type int OK for comma.



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And now I need to actually specify that whether our object can hunt other animals or not.



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So as you can see here we need to actually put a value of type Boolean.



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So true or false.



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Ok so I can just type in true comma.



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And finally even if you actually specify the class of our object here.



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OK so I can't as you can see when need actually putting a value of type string.



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So I can just put it into double quotes here.



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And then inside the double quotes I can just type in sharp K and then I need to put in a semi-colon



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at the end of my statement.



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Now I can just type in here anti-X the leopard.



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That said text.



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And inside the parenthesis I can just refer to the name of this object my Lepard that too strange.



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Now we can run our project and see what happens.