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So now let me actually comment out these lines of code here and then I'm gonna actually paste some more



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lines of code here.



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So first of all let's actually comment out these lines of code just create a multiline comment here



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as you can see here.



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Right.



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And now I'm going to paste in some lines of code here and then I'm going to explain to you what's going



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on here.



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So as you can see here these are two lines of code that I pasted here.



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So as you can see we have actually another statement here.



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So if it's value.



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So here I am referring to our integer value.



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But as you can see here we actually created this integer variable in line number 28 it value.



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And as you can see here we are actually getting the value of this textfield.



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As you can see here the value of these takes with value.



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Is it the number that takes the plus string right.



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So here I am actually getting the value of this EDT number and here I am actually converting this value



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to a string value.



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And here I am assigning that value that string value is valuable which is of type string text field



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value and line number 28.



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I actually created an idea but after integer and the name is into the right and that I put an assignment



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operator here and then here I want to actually convert the value of this string value textfield value



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to an integer value.



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So integer that parse it takes its value right.



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So in this way I can actually convert a string value to an integer value.



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So I just referred to the name of this integer class and I called the Smurfette parse.



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On this class and then I actually passed this value to the Smurfette.



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And here is I try to convert that value tway to an integer value and then this can actually be assigned



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as value to do this into value valuable.



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And now here I am saying that if its value is actually greater than 90 then we are going to assign this



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value to this result by the bell which is of type strength.



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So result.



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Assignment operator your grade is a and your number is Plus its value as if its value is actually greater



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than 80.



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Result.



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Assignment operator your grade is B and your number is Plus into value.



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If your grade is actually else into value is actually greater than 70.



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Result.



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Assignment operator your grade is c and your number is in value.



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Else if value is actually greater than 6 the result assignment operator your grade is F and your number



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is into value.



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And here we have actually an L statement so if none of the conditions above are actually true as you



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can see here.



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If none of the conditions above is true then it's going to execute this statement else.



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Result.



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Assignment operator you are not accepted.



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Right.



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And finally you are actually setting the value you have.



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These are two ways to resolve.



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So the result that said text resolved right.



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So now let's actually on our project and see what happens.



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So as you can see here our application is running on the simulator.



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So now if we actually passed the value 97 for example here ninety seven and then click on the spot and



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show me the result.



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It says your grade is a n and your number is 97 right.



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So here it is actually executing these statements because this expression evaluates to true the value



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of this interval is actually greater than 90 right.



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97.



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And now let's actually the.



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For example another value for example.



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Eighty four.



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And show me the result.



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Now it says your grade is B and your number is 84.



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And here is actually again.



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Is it this else if statement in value is greater than 70 so let's actually pass a value for example



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that is greater than 70 for example 71.



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Show me the result.



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Now it says your grade is c and your number is 71.



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And notice that if it actually passed the value for example 70 here.



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Now if I click on this button it says your grade is F and your number is 70.



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As you can see here now is going to actually execute this out.



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This actually is at this LCF statement.



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Its value is greater than 60.



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So here as you can see it when I actually created this LCF statement.



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I said that if the value of this into value is greater than 17 not equal to 70.



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So when we passed the value 70 here is going to execute this LCF statement that actually controls the



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values that are actually greater than 60 70 is greater than 60.



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So it is that right so that's how I actually decided to actually control these conditions.



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If I want to if you wanted to actually check for the seventy two I could put an assignment operator



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here.



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I could put this actually equal operator so greater than it greater than or equal to 70.



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Then it's going to if I pass the value 70 is going to give us the value c for the great.



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So that's how you manage your quotes so else if its value is greater than say 60 is going to execute



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this line of code here and else.



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So we created this Else statement here in order to actually control the conditions that are not actually



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specified here.



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So for example if none of the conditions above is true then it's going to execute this statement and



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it's going to actually show the result to the user.



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You are not accepted.



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So now let's actually pass the value for example number 50 and then click on the show me the result.



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Now it says you are not accepted because of you actually didn't control the values that are actually.



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For example a greater than 50 or equal to 50 right.



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So hopefully that makes sense and he and as he can see you can see that we are setting this result to



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these dx results so this is the X that is off right.



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So now let's actually pass another value.



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For example let's actually pass our lead here for example a here and now let's click on the spot in



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here.



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Show me the result.



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And now as you can see here our application crashed.



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Why.



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Because here as you can see if you look at this line of code here.



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When I actually been able to actually convert the value of these textfield value to an integer value



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as you can see here the value that is assigned for these takes with value must be actually of number



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right.



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If this value is actually a letter and when you want to actually convert that letter to an integer value.



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This method here is going to fail and then it's going to actually crash.



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So in order to avoid these kinds of crash Vini to actually provide exception handling here right.



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We need to handle the exceptions right.



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So I'll talk more about exception handling later in this course but for now remember that because you



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actually specified that view that this text textfield value is going to be an integer number.



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OK we need to actually passing an integer number into that textfield here.



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OK



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so as you can see here in this textfield here we must actually passing an integer number OK because



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we actually explicitly are determined that we are going to actually putting a value of type integer.



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OK we converted this value this textfield value to an integer number and we assign that value to this



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into value.



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And here we are actually working on this into you here.



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OK.



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So hopefully this makes sense.



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And if you have any questions please post the discussion in the calls and I'll do my best to answer



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your questions.



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And thank you very much for watching and I'll see you in the next tutorial.