Java The Complete Reference, Seventh Edition

488 Part II: The Java Library Framework. With the advent of collections,Vectorwas reengineered to extendAbstractListand to imple ...

Chapter 17: java.util Part 1: The Collections Framework 489 The following program uses a vector to store various types of numeri ...

490 Part II: The Java Library Vector<Integer> v = new Vector<Integer>(3, 2); System.out.println("Initial size: " + v ...

First element: 1 Last element: 12 Vector contains 3. Elements in vector: 1 2 3 4 5 6 7 9 10 11 12 Instead of relying on an enume ...

492 Part II: The Java Library the stack. Here is an example that creates a stack, pushes severalIntegerobjects onto it, and then ...

The following is the output produced by the program; notice how the exception handler for EmptyStackExceptionis caught so that y ...

To add a key and a value, use theput( )method. Useget( )to retrieve the value of a given key. The keys and values can each be re ...

Chapter 17: java.util Part 1: The Collections Framework 495 The following example reworks the bank account program, shown earlie ...

496 Part II: The Java Library while(names.hasMoreElements()) { str = names.nextElement(); System.out.println(str + ": " + balanc ...

Set<String> set = balance.keySet(); // Get an iterator. Iterator<String> itr = set.iterator(); while(itr.hasNext()) ...

498 Part II: The Java Library The following example demonstratesProperties. It creates a property list in which the keys are the ...

Chapter 17: java.util Part 1: The Collections Framework 499 // Show all of the states and capitals. for(Object name : states) Sy ...

500 Part II: The Java Library // Get a set-view of the keys. Set states = capitals.keySet(); // Show all of the states and capit ...

Chapter 17: java.util Part 1: The Collections Framework 501 // ignore missing file } /* If phonebook file already exists, load e ...

Consider using a collection the next time that you need to store and retrieve information. Remember, collections need not be res ...

18 java.util Part 2: More Utility Classes 18 java.util Part 2: More Utility Classes T his chapter continues our discussion ofjav ...

Once you have created aStringTokenizerobject, thenextToken( )method is used to extract consecutive tokens. ThehasMoreTokens( )me ...

BitSet ABitSetclass creates a special type of array that holds bit values. This array can increase in size as needed. This makes ...

506 Part II: The Java Library Here is an example that demonstratesBitSet: // BitSet Demonstration. import java.util.BitSet; clas ...

Chapter 18: java.util Part 2: More Utility Classes 507 // OR bits bits2.or(bits1); System.out.println("\nbits2 OR bits1: "); Sys ...