getter

问题 I am currently using xcode for some c++ development & I need to generate getters & setters. The only way I know is generating getters & setters in Objective C style something like this - (string)name; - (void)setName:(string)value; I dont want this; I want c++ style generation with implementation & declaration for use in the header files. Any idea...? 回答1: It sounds like you're just looking for a way to reduce the hassle of writing getters/setters (i.e. property/synthesize statements) all the

问题 I'm trying to create a getter and setter for a field in TypeScript. searchFilter: string; get searchFilter(): string { return this.searchFilter; } set searchFilter(value: string) { this.searchFilter = value; } This gives error: Duplicate identifier 'searchFilter'. I'm using TypeScript in an Angular project. @angular/cdk: 6.0.1 @angular/cli: 1.7.4 typescript: 2.5.3 回答1: You can't have property with the same name you used for getter or setter. So create another private property( _searchFilter )

问题 I have created a class, constructors and accessors. I am wondering if there is an easier way to do this? I have a Patient class: public Patient(final String ptNo, final String ptName, final String procDate, final int procType, final String injury, final String drName) throws IOException { Patient.ptNo = getPtNo(); Patient.ptName = getPtName(); Patient.procDate = getProcDate(); Patient.procType = getProcType(); Patient.injury = getPtNotes(); Patient.drName = getDrName(); } And a getter for

问题 I've had a good read of the PHP specs on overloading, and most of the examples appear to be intended to simply allow defining of custom fields (similar to stdClass). But what about the private fields defined in my class? How should these be retrieved/assigned? I could do a switch on possible values and act on certain values: class A { private $name; private $age; public function __get( $var ) { switch ( $var ) { case 'name': return $this->name; break; case 'age': return $this->age+10; // just

问题 I worked with C# for a good six months as part of my internship. Something I learned over that internship is the beauty of C# properties, AKA setters and getters. In the beginning of the internship, properties was also a source of my confusion, but using it for awhile, I fell in love with it. Coming back to Java for classes, I had to bid goodbye to it. Until.. I started this simple assignment: My methods and constructors: private double xCoor; private double yCoor; public Point(double xCoor,

问题 I'm wondering if a getter method for a private boolean field forces the other threads to get the latest updated value? Is this an alternative for volatile field? For example: Class A { private boolean flag; public boolean getFlag() { return this.flag; } public void setFlag(boolean flag) { this.flag = flag; } } vs Class B { public volatile boolean flag; } Edit: Is it true that the entire object is cached by a thread (including the private field), so that when I call the getter it will return

问题 I want to add unique ID (within a single session) to each object of a certain class. One solution is to use a factory function which increments some static counter. A simpler solution is to add this counter to the class itself, e.g.: class fooWithUniqueId { public: fooWithUniqueId() : id(next_id++) {...}; long id; private: static long next_id = 0; } A flaw, however, is that the id field is public, and can be changed by the caller, thus violating its uniqueness. A traditional (well, at least

问题 I have several get properties that I would like to be able to loop through like an array of functions. I would like to be able to do something like this public int prop1 { get; } public string prop2 { get; } public int[] prop3 { get; } public int prop4 { get; } public string prop5 { get; } public string prop6 { get; } Func<var> myProperties = { prop1, prop2, prop3, prop4, prop5, prop6 }; ArrayList myList = new ArrayList(); foreach( var p in myProperties) { myList.Add(p); } This code is very

问题 Trying to call an Action's getter from an included JSP, I get null: MyAction.java private String message = "The message I want to read..."; public String getMessage() { return message; } main.jsp <%@taglib prefix="s" uri="/struts-tags" %> <html> <head></head> <body> <div> I'm a DIV in main.jsp </div> <jsp:include page="fragment.jsp" /> <body> </html> fragment.jsp <%@taglib prefix="s" uri="/struts-tags" %> <div> I'm a DIV from fragment.jsp <br/> Message from Action: <s:property value="message"

问题 I have a class TileGrid that holds an std::vector< std::vector<Tile> > . Accessing the Tile objects in the vector works, but I can't change their properties? For the sake of completion, here are all the relevant classes: tilegrid.h #include <vector> #include "tile.h" class TileGrid { public: TileGrid(); TileGrid(unsigned int rows, unsigned int cols); virtual ~TileGrid(); unsigned int getRows() const { return rows_; }; unsigned int getCols() const { return cols_; }; Tile atIndex(unsigned int