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Chapter 11.3, Problem 15STQ

Explanation of Solution

Lambda function:

It is the nameless function that makes the implementation of the method in the quicker way. Lambda format is a simpler way of directly inserting the method whenever it is necessary.

Converting the given code using “Lambda function”:

//call the setOnAction()

btnAdd.setOnAction(e - >

{

//Get the text and convert to int

int num1= Integer.parseInt(txtNum1 . getText());

//Get the text and convert to int

int num2 = Integer.parseInt(txtNum2 . getText());

//Add the two numbers

int sum = num1 + num2 ;

//Print the sum

lblSum...

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