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Hire everyone in this theater all I'm going to go ahead and actually talk about little else.



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OK.



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So first we need to create a Java project.



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Just click on this flight Neil and then click on Java project.



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OK.



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So for the project name just type in here literals AJ and then click on finish.



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So as you can see here our project is now created and we need a class.



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OK.



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So click on this file new and then click on class for the class name.



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Just type in here Ledermann and for the package name as you know we need our reverse domain here.



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So com that mortiser



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OK.



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And then at the end of our practice at the end of our package name we need to actually put the project



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name which leaders and for the modifiers choose public.



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And here check this check box here that says public static void main method.



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OK.



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This is our starting point for running our job code.



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OK.



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So just click on this finish and here our class is created.



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So first let me read this a comment here and then I want to make this a little area.



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OK.



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So as I said earlier in the section you need to double click on this.



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Job I have here.



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OK.



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As you can see my editor area is now wider.



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OK so now I'm going to talk about leaders.



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OK.



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And here first let me point out that Java has several integer literals.



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So for example this ain't valuable here.



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The name of the variable i choose integer integer value.



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OK and I assigned the number five to my value.



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But as you can see this number five is a value that I can assign to this integer variable here.



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OK.



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In terms of literals this number phi is an integer the rule of the Ain't valuable type.



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OK this variable can also be assigned to bite and short variable's because this number is small enough



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to fit into those integer types.



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So for example if I want to create another variable here be the data type of short as you can see here.



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And the name of my variable would be short.



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Value.



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And then I can assign this value to my body.



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OK.



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Because these are number five here of this value is small enough to fit into this short data.



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Ok here I can actually create another variable with a data type of byte as you can see here.



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And for the valuable names I can just type in here byte value.



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OK.



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And then I can assign the number five to my variable here because this number again this number 5 is



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small enough to fit into these integer types.



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OK.



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So this number 5 is an integer that all of the variable here.



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OK.



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As you can see.



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OK.



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So here let me show you another example.



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For example Lanc the right type of my variable is long OK.



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And the name of my variable with the number of balls.



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OK.



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Now I can assign the value 1 to my value then.



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OK.



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So here if I want to output the value of this number of balls variable to the console I just need to



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type in here system that out that princeling and that inside Apprentice's I just need to refer to the



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name of the variable number of balls.



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And here I use the autocomplete feature of the eclipse to actually help me write the variable name and



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at the end of your statement just put a semi-colon.



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OK.



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So here I want to actually let you know another point about Eclipse.



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As you can see this star symbol here is now appearing beside the name of my class.



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OK so now if I want if I actually save my project by pressing on the common plus the s key on my keyboard



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I can save my project.



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OK so now let me actually create a comment here for maximizers Pakhi in order to save your project just



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actually press on common key.



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Plus the key on your keyboard.



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In order to save your your project.



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So let me now say if my project and as you can see here this star here is now gone.



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OK.



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So this is how you say your project in Mac for Windows users



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for Windows users.



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Just press on control key it plus the s key on your keyboard.



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OK.



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So this is how you say your project are in Eclipse.



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OK.



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So another point that you actually talk about here is for example if I want to actually add another



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value to the number of balls are valuable here.



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So as you know I can assign another value to this or to this valuable here because this is not a constant.



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So it's just a regular variable.



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This is not a constant.



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OK so I can't assign another value to this variable.



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So I just need to refer to the name of my variable again.



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I actually use the autocomplete feature of the eclipse and then as you can see here I referred to the



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name of my variable.



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And again I want to actually assign another value to this variable.



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So I just type in here the name of my variable OK plus the number 40.



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OK.



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So as you can see here you may ask that what's going on here.



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OK.



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So now as I said earlier in the section this is not an equal operator OK.



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So here I referred to the name of my variable here in order to read its value.



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OK.



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So now as you can see this is number one here.



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OK.



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If you want to actually delete this variable name here and just put a number number one here.



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OK this is the same as if you want to for example put that name of my value.



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But what this is a good programming practice that you actually referred to the name of your valuables



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in order to return values.



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OK.



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So this is not good to actually heart code your values in your programs.



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OK.



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So I'll actually show you more examples about this concept later in this course.



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But for now just know that this number of balls here means I am referring to the invaluable name here.



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In order to read it's value.



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Ok here I am adding this number to the value of my variable here.



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OK.



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So let me actually run my project now.



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And as you can see here it outputs the value of this variable here to the console.



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OK the value of this variable here is number one.



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OK.



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As you can see here output the value of this valuable to the console here.



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OK let's see what happens system that out that land.



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And then inside Apprentice's I just say to refer to the name name of my valuable OK number of balls.



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And at the end of my statement I just need to put a semi-colon.



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So here if I run my project now it outputs the value of 41 to the console.



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OK so what happens here here.



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I actually created this value.



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OK.



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And here I decided to output the value of this value over to the console.



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OK.



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In this line.



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OK.



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And in the line 18 here as you can see here I added this number to the value of my value.



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OK which is number one.



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OK.



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And then I assign the result of this operation to my value.



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OK.



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And then I assign the result of this operation to my variable.



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So let me explain to you once again here.



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I actually added this number to the value of my body event which is number one.



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OK.



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I am referring to the name of my variable in order to lead its value.



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OK this is a very important point in programming.