Download Data Structures and the Java Collections Framework (3rd by William Collins PDF

By William Collins

Delivering scholars and teachers a realistic method of application layout, checking out and implementation, this article makes use of the Java Collections Framework, a part of the java.util package deal, as a platform to increase higher-level functions. This up to date 3rd version good points an elevated emphasis on trying out. The unit checking out gains of JUnit4 ? with the test-first version ? are brought early, in bankruptcy 2, and built-in in purposes through the closing chapters. moreover, there's plentiful chance for hands-on perform, together with 23 lab experiments, 1000's of programming workouts and greater than 30 programming initiatives.

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Additional resources for Data Structures and the Java Collections Framework (3rd Edition)

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6. The region of a program to which an identifier’s declaration applies. 7. The separation of a program into components that are coherent units. 8. A new, that is, non-primitive type. 9. In a class, a method whose name is the same as the class’s name and whose purpose is to initialize a calling object’s fields. DOWN 1. The ability of a class to have methods with the same method identifier but different parameter lists. 2. A method’s identifier together with the number and types of parameters in order.

Each method heading is followed by a semicolon instead of a definition. Such a method is called an abstract method . An interface is a collection of abstract methods and constants. There are no defined methods and no fields. For example, here is the interface for figures: public interface Figure { final static int MAX_X_COORD = 1024; final static int MAX_Y_COORD = 768; /** * Draws this Figure object centered at the given coordinates. * * @param x – the X coordinate of the center point of where this Figure * object will be drawn.

The following class illustrates the scopes of several identifiers. println (t + " " + x + " " + sample); } // method original } // class Scope; end of boolean t’s scope; end of int x’s scope; end of double sample’s scope All three fields— t, x and sample —are re-declared within the method sample. But the scope of those three fields includes the method original. And note that there is no ambiguity when sample is used 12 C H A P T E R 0 Introduction to Java both as a field identifier and as a method identifier, because a method identifier is always followed by parentheses.

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