Java The Complete Reference, Seventh Edition

208 Part I: The Java Language running and printed a stack trace whenever an error occurred! Fortunately, it is quite easy to pre ...

int a=0, b=0, c=0; Random r = new Random(); for(int i=0; i<32000; i++) { try { b = r.nextInt(); c = r.nextInt(); a = 12345 / ...

int a = args.length; System.out.println("a = " + a); int b = 42 / a; int c[] = { 1 }; c[42] = 99; } catch(ArithmeticException e) ...

Chapter 10: Exception Handling 211 System.out.println("Generic Exception catch."); } /* This catch is never reached because Arit ...

212 Part I: The Java Language c[42] = 99; // generate an out-of-bounds exception } } catch(ArrayIndexOutOfBoundsException e) { S ...

Chapter 10: Exception Handling 213 /* If two command-line args are used, then generate an out-of-bounds exception. */ if(a==2) { ...

Here is a sample program that creates and throws an exception. The handler that catches the exception rethrows it to the outer h ...

typeErrororRuntimeException, or any of their subclasses. All other exceptions that a method can throw must be declared in thethr ...

216 Part I: The Java Language finally When exceptions are thrown, execution in a method takes a rather abrupt, nonlinear path th ...

Chapter 10: Exception Handling 217 System.out.println("procC's finally"); } } public static void main(String args[]) { try { pro ...

218 Part I: The Java Language Exception Meaning ArithmeticException Arithmetic error, such as divide-by-zero. ArrayIndexOutOfBou ...

Chapter 10: Exception Handling 219 Creating Your Own Exception Subclasses Although Java’s built-in exceptions handle most common ...

220 Part I: The Java Language You may also wish to override one or more of these methods in exception classes that you create. E ...

Chapter 10: Exception Handling 221 value of the exception. TheExceptionDemoclass defines a method namedcompute( )that throws aMy ...

// create an exception NullPointerException e = new NullPointerException("top layer"); // add a cause e.initCause(new Arithmetic ...

11 Multithreaded Programming 11 Multithreaded Programming U nlike many other computer languages, Java provides built-in support ...

each of these tasks to finish before it can proceed to the next one—even though the CPU is sitting idle most of the time. Multit ...

A thread can voluntarily relinquish control.This is done by explicitly yielding, sleeping, or blocking on pending I/O. In this ...

226 Part I: The Java Language The Thread Class and the Runnable Interface Java’s multithreading system is built upon theThreadcl ...

Chapter 11: Multithreaded Programming 227 // Controlling the main Thread. class CurrentThreadDemo { public static void main(Stri ...