Programming and Problem Solving with Java

(^420) | Event-Driven Input and Output Reason for Test Case Input Values Expected Output Observed Output Test add command 12.5,+ ...

421 Summary Graphical user interfaces (GUIs) provide more convenient and intuitive input for users. However, they also take more ...

422 7.When a dialog involves processing input from a field after a button has been clicked, what part of the code is responsible ...

423 outPane = out.getContentPane(); out.setSize( 300 , 200 ); out.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); outPane.setLay ...

424 9.Do we have to get a content pane from a JPanelas we do with a JFrame? 10.What method would you use to change the value dis ...

425 3.Provide a user interface with two buttons, Enter and Quit. a.Write the statements that declare the variables for the butto ...

426 12.Write the statements to declare a JPanelvariable, instantiate an object for it, set its layout manager to FlowLayout, and ...

427 8.Most of the code in the Calculatorapplication involves input/output. The code is long, but the concepts are simple. Examin ...

428 register.setText(""+ result); inputField.setText(""); } } static classClearHandler implementsActionListener { public voidact ...

429 calcFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); calcPane = calcFrame.getContentPane(); calcPane.setLayout(newGridL ...

Knowledge Goals To understand what is and is not an exception To know when throwing an exception is appropriate To know how an ...

9 CHAPTER this book we have said that a construct could cause an exception. Until now, we have handled exceptions by forwarding ...

(^432) | Exceptions and Additional Control Structures 9.1 Exception-Handling Mechanism In Chapter 8, we defined an exceptionas a ...

9.1 Exception-Handling Mechanism | 433 When a statement or series of statements in an application may result in an exception, we ...

(^434) | Exceptions and Additional Control Structures Let’s look at an example of a try-catchstatement to illustrate this proces ...

9.1 Exception-Handling Mechanism | 435 outFile = new PrintWriter(new FileWriter(filename)); } catch(IOException ioErr) { errorLa ...

(^436) | Exceptions and Additional Control Structures void caller() { // Some statements try { // Statements someMethod(); // St ...

9.1 Exception-Handling Mechanism | 437 } We would call this constructor within a try-catchstatement: try { myAddress = new Addre ...

(^438) | Exceptions and Additional Control Structures Look at the try-catchin the previous section: try { myAddress = new Addres ...

9.2 Additional Control Statements | 439 and continue with Statement5. If digitis none of the values previously mentioned, execut ...