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Questions tagged [long-integer]

A long integer is an integer number, typically twice the size of a standard integer. It is represented by the keyword 'long' in several programming languages.

A long integer is an integer number, typically twice the size of a standard integer. It is represented by the keyword 'long' in several programming languages.

http://en.wikipedia.org/wiki/Integer_(computer_science)#Long_integer

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Java Converting long into currency

I am having trouble converting a long (cents) into currency format. My Code: long doublePayment = 1099; //Should equal $10.99 DecimalFormat dFormat = new DecimalFormat(); String formattedString =…
mcd
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Java - parse and unsigned hex string into a signed long

I have a bunch of hex strings, one of them, for example is: d1bc4f7154ac9edb which is the hex value of "-3333702275990511909". This is the same hex you get if you do Long.toHexString("d1bc4f7154ac9edb"); For now, let's just assume I only have…
Peter
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Why "long int" has same size as "int"? Does this modifier works at all?

Ehm.. I kind' of though this modifiers like long / short expands / reduces amount of memory allocated when variable are created, but... #include #define test_int int #define long_int long int #define long_long_int long long int void…
Kosmo零
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Conversion IPv6 to long and long to IPv6

How should I perform conversion from IPv6 to long and vice versa? So far I have: public static long IPToLong(String addr) { String[] addrArray = addr.split("\\."); long num = 0; for (int i = 0; i <…
Testeross
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What's the 'long' data type used for?

I've been programming in C++ for quite a while now and I am pretty familiar with most of the stuff. One thing that I've never understood though is the 'long' data type. I googled it but I still don't know what it is for. I've found pages that say it…
Alex
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long vs Guid for the Id (Entity), what are the pros and cons

I am doing a web-application on asp.net mvc and I'm choosing between the long and Guid data type for my entities, but I don't know which one is better. Some say that long is much faster. Guid also might have some advantages. Anybody knows ?
Omu
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Java code using HashSet of longs doesn't work?

This simple Java code adds 2 to a set of long, and subsequently prints whether 2 is a member of the set: import java.util.*; class A { public static void main(String[] args) { HashSet s = new HashSet(); long x = 2; …
Dog
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What is the modulo operator for longs in Java?

How do I find the modulo (%) of two long values in Java? My code says 'Integer number too large' followed by the number I'm trying to mod. I tried casting it to a long but it didn't work. Do I have to convert it to a BigInteger and use the remainder…
Descartes
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How to specify a BIGINT literal in T-SQL?

Aside from wrapping my literal in a CONVERT function, is there a way to specify that I want e.g. 12345 represented as a BIGINT and not an INT? In C#, I could specify 12345L, but I'm unaware of equivalent functionality in T-SQL.
Jason
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How to display the maximum value of a unsigned long long in C?

What am I doing wrong here? $ cat size.c #include #include int main() { printf ("sizeof unsigned int = %d bytes.\n", sizeof(unsigned int)); printf ("sizeof unsigned long long = %d bytes.\n", sizeof(unsigned long long)); printf…
Lazer
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Sane way to go from ArrayList through an Intent

I'm currently writing an app that pulls an array of longs from a server via json, and then passes that list from one activity into another. The basic skeleton looks like this: public void onResponse(Map result) { ArrayList handles=…
Kevin DiTraglia
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Long Int literal - Invalid Syntax?

The Python tutorial book I'm using is slightly outdated, but I've decided to continue using it with the latest version of Python to practice debugging. Sometimes there are a few things in the book's code that I learn have changed in the updated…
Ziggy
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Cannot convert from type object to long

I have a hashtable named table. The type value is long. I am getting values using .values(). Now I want to access these values. Collection val = table.values(); Iterator itr = val.iterator(); long a = (long)itr.next(); But when I try to get…
Mohit BAnsal
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Why is the sizeof(int) == sizeof(long)?

In the program listed below, the sizeof(int) and sizeof(long) are equal on my machine (both equal 4 bytes (or 32 bits)). A long, as far as I know, is 8 bytes. Is this correct? I have a 64-bit machine #include #include int…
ChrisMcJava
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Java: Why can't I declare integer types using scientific notation?

I can easily read 2e15 as "two quadrillion" at a glance, but for 2000000000000000 I have to count the zeroes, which takes longer and can lead to errors. Why can't I declare an int or long using a literal such as 2e9 or 1.3e6? I understand that a…
odougs
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