A semaphore is
A. a global variable that different processes may use
B. created by the signal function
A. a global variable that different processes may use
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The basic generic functional interface ________ in package java.util.function contains method apply that takes a T argument and returns a value of type R. Calls a method on the T argument and returns that method’s result.
a. Consumer
Modify the application you devel- oped in Exercise 11.17 to calculate the yearly salary every time one of the JSpinner’s values is changed. The user specifies the amount of the annual raise (as a percentage) and the num- bers of years for which the raise applies in the application. The application should run as shown in Fig. 13.26.
a) Copying the template to your working directory. Copy the C:Examples Tutorial13ExercisesPayRaise2 directory to your C:SimplyJava directory.
b) Opening the template file. Open the PayRaise.java file in your text editor.
c) Handling the stateChanged event for raiseJSpinner. Add code to the state- Changed event handler for raiseJSpinner to call method raiseJSpinnerState- Changed. This method must then be declared and it should call calculateWages.
d) Handling the stateChanged event for yearsJSpinner. Add code to the state- Changed event handler for yearsJSpinner to call method yearsJSpinnerState- Changed. This method must then be declared and it should call calculateWages.
e) Saving the application. Save your modified source code file.
f) Opening the Command Prompt window and changing directories. Open the Com- mand Prompt window by selecting Start > Programs > Accessories > Command Prompt. Change to your working directory by typing cd
A picture CANNOT be inserted into the header of a report
Indicate whether the statement is true or false
Clicking a button on a program screen causes an event to occur.
Answer the following statement true (T) or false (F)