QueryCAT Logo
Search 5,000,000+ questions and answers.

Frequently Asked Questions

How do you convert a string to a byte array and visa versa?

Sun Microsystems
Java.lang.String has certain utilities to convert a string into a byte array and visa versa. A string can be converted correctly and fully into a byte array by using a character encoding such as UTF-8, US-ASCII. All the overloaded String.getBytes() methods will convert a string into a byte array. Some of these methods take an encoding identifier as an argument, while others take no arguments and will use the platform's default encoding to convert the string.

How to convert an int to a char array or C++ string?

Tech Talk about C++ and C Issues / Comeau C++ and C FAQ
How to add a float (or "any" type really) to the end of a C++ string? Unlike routines like atoi mentioned in the previous question, there is no direct routine such as itoa available. However, similar to the string I/O routines in the previous question, one can do this: #include <stdio.h> // cstdio in C++ // ..

How can I convert an INT into CHAR*/STRING or vice versa?

Beginner FAQ - GPWiki
This is something you do a lot in programming and pretty much every language makes it easy to convert between types. You may have already printed integers to the console with COUT or PRINTF, which of course needs to be converted to a string first. Converting numbers to strings is done in a similar way. Boost is a C++ library that can help you with problems like these and many others.

Can I convert my boiler from Oil to Gas or visa-versa?

Desco Energy
The simple answer is no. While some boilers can be converted by replacing the existing burner with a substitute burner this is a project strictly limited to professionals and not to be undertaken as a do it yourself project under any circumstances. Please bear in mind that most boilers are designed to accommodate the characteristics of the intended fuel. A boiler that is designed to burn natural gas (a vapor) utilizes burners that simply cannot burn No. 2 fuel oil (an atomized liquid).

How do I convert a string to a number?

Updating the For Beginners forum FAQ - GameDev.Net Discussio...
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)

Is Bioheat® fuel the same as Biodiesel, or visa versa?

Biodiesel.org - Home Heating Oil
NO. Biodiesel is the term for the pure biodiesel, B100. Bioheat® fuel is conventional heating oil containing biodiesel. NO. Biodiesel is produced from raw vegetable oils or animal fats, but the oil or fat must go through the chemical reaction (called transesterification) to make it into biodiesel and be tested to make sure it meets D 6751 before it is blended with heating oil.

How do I convert a common date to a Jewish date or vice versa?

Frequently Asked Questions
Simply use the dropdown lists to specify the common or Jewish date that you want. That's it -- no "compute" button to press. The answer will appear instantaneously in the other fields.

How do I convert from US to UK measures, and vice-versa?

The Brew Shop - Frequently Asked Questions
That is to say, for all units above the ounce, the Imperial or British variant is almost exactly 20% larger than the corresponding US unit.

How to convert the datetime into a string for use in the SQL ' statement?

Megasolutions.net :: Asp.Net Frequently Asked Questions - FA...
Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load Private Sub ddlCulture_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ddlCulture.SelectedIndexChanged

How do I convert an integer to a string representation?

CSC 209 Summer 2006
Well, printf does it for output, so look at its related function named sprintf that "prints formated output to a string."

How can I convert an integer or a float to a string?

Frequently Asked Questions
It's easy. Use sprintf. For example: char string1[50]; char string2[50]; short int var1; float var2; ... sprintf (string1, "%d", var1); sprintf (string2, "%f", var2);

How can I convert from string to int ?

C++ corner
You want to make a function that converts from a type to another. Like from std::string to int, or the other way around. This can be done using std::stringstream and insertion / extraction operators. Just as above, templates will prove of great help: Its usage is not as straightforward as the above explained max template. Normally, you would want to call it like "int value = lexical_cast( myStdString );". There is, however, a problem.

How do I convert a std::string to a number?

Miscellaneous technical issues, C++ FAQ Lite
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.

How do I convert a string into an internet address?

Programming UNIX Sockets in C - Frequently Asked Questions: ...
If you are reading a host's address from the command line, you may not know if you have an aaa.bbb.ccc.ddd style address, or a host.domain.com style address. What I do with these, is first try to use it as a aaa.bbb.ccc.ddd type address, and if that fails, then do a name lookup on it. Here is an example: Converts ascii text to in_addr struct. NULL is returned if the address can not be found.

Will I experience any problems storing an array of bytes (byte[]) in my tuple?

FAQ - TSpaces - Computer Science Research at Almaden
No, you'll not. Java treats an array as a serialiazable object so it is a valid Field value. Here is a fragment of code that I wrote to verify that TSpaces can store very long arrays of byte. for ( int s = 1; s<999; s++) { System.out.println( s ); byte h[] = new byte[ s*1000 ]; for( int i=0;i< s*1000; i++) { h[i] = 65; } String key = "hello"+s; Tuple t = new Tuple(key, h ); ts.write( t ); Tuple template = new Tuple(key,new Field(byte[].class)); Tuple t2 = ts.read(template); System.out.

Will my station be able to switch from a BMI blanket to a BMI per program license or visa versa?

Radio Music License Committee
Stations will be permitted to switch between blanket and per program licenses as of January 1 and July 1 of each year beginning as of January 1, 2004. A station's ability to change from a blanket to a per program license is contingent upon the station using BMI feature music in no more than the requisite number of weighted programming periods, as explained in the fee allocation methodology.

How to convert byte[0]=2 byte[1]=1 to its corresponding short value?

JavaChina: SCJP Questions & Answers by Roseanne Zhang (8...
You are not allowed using byte as your array name, since it is a reserved word. Let's change it to b[]

Can I convert my liquid propane barbecue to natural gas (or vice-versa)?

Frequently Asked Questions
Yes and No. Only North American made barbecues. The more specific answer is that you can definitely convert almost any barbecue over to another gas, but the cost will be dependent upon the type and brand of barbecue you have. Some manufacturers offer conversion kits that make things relatively simple. The least you will get away with is replacing the gas hose and the valves in addition to any fittings you need to connect everything together. Side-burners can further complicate matters.

What is a byte?

Frequently Asked Questions
The common unit of computer storage from desktop computer to mainframe. It is made up of eight binary digits (bits). The term was originally coined to mean the smallest addressable group of bits in a computer, which has not always been eight. A byte holds the equivalent of a single character, such as the letter A, a dollar sign or decimal point. For numbers, a byte can hold a single decimal digit (0 to 9), two numeric digits (packed decimal) or a number from 0 to 255 (binary numbers).

Explore Other Topics

How long before i can put fish in my tank?
Question: How long should I expect to suffer headaches from the concussion?
What is the settlement period for mutual funds?
Question: What can we do about moss in the lawn?
When you talk about 260 linear feet, how do you measure?
Can I powder coat over chrome parts?
How do I acquire a Schengen visa for my exchange student for a trip to EU countries?
Will Rislone Engine Treatment work in synthetic oil?
What do you mean by triple occupancy?
What does the "cannot init D3D or GRF file has a problem!" error mean?
I need a CSR for a Wildcard SSL certificate, what do I use for the Common Name (CN)?
More Questions >>

© Copyright 2007-2009 QueryCAT
About • Webmasters • Contact