Read comments in the code. #include<iostream> using namespace std; class A { public: A(int a1,int a2) {x=a1; y=a2;} void print() const; // readonly parameter x1 void setX(const int x1) {x = x1;}n // y1 is allowed to change void setY(int y1) {y1++; y = y1;} // function is not allowed to change the class members int getXplusY() const { return x+y;} private: int x,y; }; void A::print() const { cout<<x<<":"<<y<<endl; //notice :!!!! } int main(){ A obj1(10,30); obj1.

One reason is that so very much code contains lines like char *p = "Hello, world!"; which are not necessarily incorrect. These lines would suffer the diagnostic messages, but it's really any later attempt to modify what p points to which would be problems. See similar questions...

I'm trying to use the ANSI ''stringizing'' preprocessing operator '#' to insert the value of a symbolic constant into a message, but it keeps stringizing the macro's name rather than its value. C's preprocessor is not intended as a general-purpose tool. (Note also that it is not guaranteed to be available as a separate program.) Rather than forcing it to do something inappropriate, you might want to write your own little special-purpose preprocessing tool, instead. See similar questions...

The objects created in the String pool are not subjected to GC until the class is unloaded by the JVM. They get discarded at that time or just before the virtual machine unloads the class' bytecode. For the purpose of the SCJP exam, you are not required to know the details of String pool memory management. See similar questions...

wgSpamRegex is a powerful filter for page content. Adding multiple items to the regex, however, can be awkward. Consider this snippet: wgSpamRegexLines[] = 'display\s*:\s*none'; $wgSpamRegexLines[] = 'overflow:\s*\s*auto'; [...] $wgSpamRegex = '/(' . implode( '|', $wgSpamRegexLines ) . ')/i'; This example code allows convenient addition of additional items to the regex without fiddling about each time. It also demonstrates two popular filters, which block some of the most common spam attacks. See similar questions...

Are you looking for more distance on your shots or more control over them? Generally, if you string at the lower end of your racquet's recommended tension range, the same stroke will make the ball fly farther. Adjust string tension according to desired effect. Low tension = deeper shots. High tension = shorter shots. any given swing speed, higher string tensions improve control. High tension = better control. Low tension = less control. See similar questions...

I am including the header file <string>, and I am using the string class, but the code doesn't compile? (namespace resolution, having the std:: topics) How do I use unique() with vectors? (answered only once, but still a good question to have due to people not knowing that it's possible to do) See similar questions...

Shouldn't the following code: #define ROSE 1 #define CHRYSANTHEMUM 2 #define RHODODENDRON 3 #define WATER_LILY 4 printf("%d\n", CHRYSATHNEMUM); See similar questions...

MACRO Golf not only provides its clients with a Tour-tested putter, but also a putting system that will lower your score. There are two ways to get instruction in the split grip system advocated by Macro Golf: Free DVD: MACRO Golf has produced a short DVD providing an extended version of the instruction found on this site. It provides a comprehensive overview of hand placement, stance, stroke and drills to improve your putting consistency after a few practice rounds. See similar questions...

In short, const identifiers act like they're part of the language because they are part of the language. The preprocessor can be thought of as a language layered on top of C++. You can imagine that the preprocessor runs as a separate pass through your code, which would mean your original source code would be seen only by the preprocessor, not by the C++ compiler itself. See similar questions...

Its all about string tension, feel and tuning. For example, 9 gauge strings (9 - 42) are considered normal for electric guitars and they come standard on most brands. These are great for people who play in E Standard tuning (or Drop D) with a light touch and want easy string bending. The next step up is 10 gauge strings (10 - 46) which you can still tune to E Standard for a stiffer feel or tune down a half step to E Flat Standard (or Drop C Sharp) for the same tension as 9 gauge strings. See similar questions...

Each ornament has a different length of string used and it is best not to cut the string from the ball until you are finished with the ornament. See similar questions...

The source data requirements that were analyzed and found to be inconsistent in their use of codes. For components with the same meaning, some sources used codes while others used literals. When codes were used, they were not always drawn from the same code table. Some code tables are specific to local jurisdictions. In order to provide maximum flexibility, the Global JXDM usually provides both a code type element and a text type element (that may contain a literal). See similar questions...

All constants declarations are implicitly static, and the C# specification states that the (redundant) inclusion of the static modifier is prohibited. I believe this is to avoid the confusion which could occur if a reader were to see two constants, one declared static and one not - they could easily assume that the difference in specification implied a difference in semantics. See similar questions...

Some pre-ANSI compilers/preprocessors interpreted macro definitions like #define TRACE(var, fmt) printf("TRACE: var = fmt\n", var) such that invocations like TRACE(i, %d); were expanded as printf("TRACE: i = %d\n", i); In other words, macro parameters were expanded even inside string literals and character constants. (This interpretation may even have been an accident of early implementations, but it can prove useful for macros like this. See similar questions...

There are two easy ways to do this: you can use the <cstdio> facilities or the <iostream> library. In general, you should prefer the <iostream> library. See similar questions...

It is very easy. Click 'NEW'; perform the activities on your computer that you want to record, click 'STOP' and then 'SAVE' the recorded activities to a file. You can play back your recorded actions by using the 'RUN' button and selecting the file that you saved. For further details refer to the Help file. No. Workspace Macro's SMART Macro Technology automatically adjust to changes of window size and location. See similar questions...

The Macro Kit allows you to photograph the colorful small objects (about the size of your hand) eight inches from the camera. The results will amaze you. Macro pictures will usually prove satisfactory even in lower visibility situations. Remember to hold especially still when taking the photograph. Macro photography will provide you with a lesson in how difficult it is to remain motionless underwater. See similar questions...