... A D B CDD A B CDCC A A A A D B B A CDD B CD B B A C A D B A DDC A B C B B B C A DC B DDCC B D A A B D B B CC A B DCC B CD B C B DC A DCDCDCDCC A A A B DD B D B B C ... C A B C A A DCCCDDD A DC B C B CDD A D A B CDD B DD A A C A B C B DD B A A B B D A A CD A A B A D B B A A C A A A C A C B A C A CDCDD B A DDD B CDCDC B B A B A D A B C ... D B A DDDD A C A A A B B A D A D B B B A DD A A DD A DDDD B B C B CC A A A A B C B B DCD A D A A D A A CCCC A D A D B A B DC A CCD A CC A B B C B B B B B C A A DD B DD B C...
... A D B CDD A B CDCC A A A A D B B A CDD B CD B B A C A D B A DDC A B C B B B C A DC B DDCC B D A A B D B B CC A B DCC B CD B C B DC A DCDCDCDCC A A A B DD B D B B C ... C A B C A A DCCCDDD A DC B C B CDD A D A B CDD B DD A A C A B C B DD B A A B B D A A CD A A B A D B B A A C A A A C A C B A C A CDCDD B A DDD B CDCDC B B A B A D A B C ... D B A DDDD A C A A A B B A D A D B B B A DD A A DD A DDDD B B C B CC A A A A B C B B DCD A D A A D A A CCCC A D A D B A B DC A CCD A CC A B B C B B B B B C A A DD B DD B C...
... greed D greedy 23 A journal B report C journalist D newspaperman 24 A decide B decided C decisive D decision 25 A high B badly C highly D height 26 A incredible B incredibly C credible D credibly ... language exchange programs A be learning B have learned C have learning D be learned D USE OF ENGLISH Choose the underlined word or phrase in each sentence that needs correcting 51 Acupuncture (A) comes ... were late for school today A My brother and I were late for school because we dressed too quickly B My brother and I dressed quickly but were late for school because we missed the school bus C...
... to call C+ + code from Objective -C objects, and vice versa Because they have very different object models, you cannot subclass an Objective -C class with C+ +, or the converse; however, you can use ... Declaring Objective -C Types 19 always referenced by pointer In the first implementations of Objective -C, which produced pure C from Objective -C, classes were turned into structure definitions ... Objective -C Programs 10 $ gcc scanner.m Undefined symbols: "_OBJC_CLASS_$_NSAutoreleasePool", referenced from: objc_classrefs DATA @0 in ccoRpaJq.o "_objc_msgSend", referenced from: _main in ccoRpaJq.o...
... Categories Extensions 21 6 21 7 21 8 Instance Variable Scope (Access Control) Access Control for Methods Namespaces Security 22 0 22 1 22 1 22 2 Calling C Functions from Objective -C Technical 22 5 Practical ... Using Exceptions 20 7 20 8 Should You Use Exceptions? Summary 20 9 21 0 Exercises 20 6 21 1 11 Categories, Extensions, and Security Categories 21 3 21 3 Overriding Methods with Categories Other Uses for Categories ... Unnumbered Code Listings These are primarily short snippets of code that are referenced in the text that immediately precedes or follows the example Numbered Code Listings The numbered code listings...
... robustness Chapter extends our discussion on the reference types that were first introduced in Chapter These advanced reference types include delegates, events, abstract classes, and interfaces New ... intended audience of experienced programmers Although some background in object-oriented technology is ideal, all object-oriented features are reviewed in the broader context before they are described ... Objects, and Namespaces 2. 1 Classes and Objects 10 2. 1.1 Declaring Classes 10 2. 1 .2 Creating Objects 11 2.2 Access Modifiers 12 2 .2. 1 Controlling Access to Classes 12 2 .2. 2 Controlling Access...
... NamespaceDecl | TypeDecl TypeDecl = ClassDecl | StructDecl | InterfaceDecl | EnumDecl | DelegateDecl So far, only class declarations have been presented Other type declarations, however, will ... and Class Reuse 3.1 .2 EBNF ■ Accessing Fields For a field to be accessed from outside the class itself, it must be preceded by a class or object reference: ( ClassReference | ObjectReference ) ... Id.netmodule To generate the same TestId.exe file as before, the object file Id.netmodule is then linked using the option /addmodule:Id.netmodule when TestId.cs is compiled: csc TestId.cs /addmodule:Id.netmodule...
... IncV Hence, c is a copy of the reference cm The parameter c is then assigned a reference to a new object of Counter The count field of c is incremented by and displayed However, once the IncV method ... complete, each reference type merits a full description in its own right The ClassType includes user-defined classes as introduced in Chapter as well as two predefined reference types called object ... the constructor of Counter is executed before the constructor of BoundedCounter as expected However, when an object of BoundedCounter is destroyed upon completion of the method Main, the destructor...
... NamedCounter nc1 = new NamedCounter("nc1"); NamedCounter nc2 = new NamedCounter("nc2"); NamedCounter nc3 = new NamedCounter("nc1"); Counter c1 = new Counter(); Counter c2 = new Counter(); Console.WriteLine("HashCode ... Console.WriteLine("HashCode nc3 = {0} ", nc3.GetHashCode()); Console.WriteLine("HashCode c1 = {0} ", c1 .GetHashCode()); Console.WriteLine("HashCode c2 = {0} ", c2 .GetHashCode()); Console.WriteLine("nc1 Console.WriteLine("nc1 ... subobject v2 is cloned as well The object clone is then returned from the method Clone and assigned to dc2 Increasing the value of v2 and printing objects dc1 and dc2 shows that the reference field...
... have the following syntax: CheckedExpr CheckedStmt UncheckedExpr UncheckedStmt = = = = "checked" "(" expression ")" "checked" "{" statement+ "}" "unchecked" "(" expression ")" "unchecked" "{" ... of three categories: labeled, declaration, and embedded This is shown by the following EBNF definition: EBNF Stmt = LabeledStmt | DeclStmt | EmbeddedStmt Embedded statements include the full ... this chapter, we first present one type of embedded statement called the block statement Declaration statements and all other embedded statements are then discussed with particular emphasis on the...
... private DeviceManager1 dm; } Now consider a HighLevelDeviceDriver that uses a LowLevelDeviceDriver object called lldd public class HighLevelDeviceDriver { public HighLevelDeviceDriver() { lldd = new ... Handling 125 } catch(DivideByZeroException e) { Console.WriteLine("Handled in DeviceManager1 [ {0} ]", e) ; } } private LowLevelDeviceDriver dd; } Because DeviceManager1 handles the DeviceException ... delegate, then a compiler error is generated Hence, delegates are type-safe and are declared according to the following EBNF definition: DelegateDecl = DelegateModifiers? "delegate" Type Identifier...
... location Finally, the methods Remove and RemoveAt delete the first occurrence of a speci c value and delete the item at a specified index, respectively Constructors Like all classes, instances ... classes that implement IEnumerable and IEnumerator, respectively The first class called IntCollection implements the single method GetEnumerator declared in IEnumerable The second class called IntEnumerator ... restated here, the method CompareTo compares the current object with its single parameter: interface IComparable { int CompareTo(object o); } The second interface called IHashCodeProvider generates...
... IncV Hence, c is a copy of the reference cm The parameter c is then assigned a reference to a new object of Counter The count field of c is incremented by and displayed However, once the IncV method ... complete, each reference type merits a full description in its own right The ClassType includes user-defined classes as introduced in Chapter as well as two predefined reference types called object ... Console.WriteLine("| {0: # .00 }|{1 :0. 00} | {2, 5 :0. 00} |{3,-5 :0. 00} |", 23 , 23 , 23 , 23 ); } } Output: |$1 .23 |($1 .23 )| | 123 | -0 123 | |1 .23 |1 .23 00 | |1 .23 000 0E+ 00 0|1 .23 | | 123 .00 %|1 .23 | |FF |00 0FF| FF|FF | | .23 |0 .23 | 0 .23 |0 .23 |...