Integer how long

Accessing an uninitialized local variable will result in a compile-time error. You may have noticed that the new keyword isn't used when initializing a variable of a primitive type. Primitive types are special data types built into the language; they are not objects created from a class.

A literal is the source code representation of a fixed value; literals are represented directly in your code without requiring computation.

As shown below, it's possible to assign a literal to a variable of a primitive type:. An integer literal is of type long if it ends with the letter L or l ; otherwise it is of type int. It is recommended that you use the upper case letter L because the lower case letter l is hard to distinguish from the digit 1. Values of the integral types byte , short , int , and long can be created from int literals.

Values of type long that exceed the range of int can be created from long literals. Integer literals can be expressed by these number systems:. For general-purpose programming, the decimal system is likely to be the only number system you'll ever use.

However, if you need to use another number system, the following example shows the correct syntax. The prefix 0x indicates hexadecimal and 0b indicates binary:.

A floating-point literal is of type float if it ends with the letter F or f ; otherwise its type is double and it can optionally end with the letter D or d. The floating point types float and double can also be expressed using E or e for scientific notation , F or f bit float literal and D or d bit double literal; this is the default and by convention is omitted. If your editor and file system allow it, you can use such characters directly in your code.

Always use 'single quotes' for char literals and "double quotes" for String literals. Unicode escape sequences may be used elsewhere in a program such as in field names, for example , not just in char or String literals. The data type long is of bits. Bytes If counted in bytes, int is 4 bytes.

If counted in bytes, long is 8 bytes. Range In Java the range of type int is —2,,, to 2,,, In Java the range of type long is —9,,,,,, to 9,,,,,, Keyword Keyword used to declare a variable of int type is "int". Keyword used to declare a variable of long type is "long". Memory Memory required to store an int variable is less as compared to long.

Memory required to store a long variable is larger as compared to int. A data type int is a most commonly used data type which holds an integer value in it. Type Characters. Appending the literal type character L to a literal forces it to the Long data type. Framework Type. The corresponding type in the. NET Framework is the System. Int64 structure. Feedback will be sent to Microsoft: By pressing the submit button, your feedback will be used to improve Microsoft products and services.

Privacy policy. Skip to main content. News and Special Offers occasional. Long Integer. Techopedia Explains Long Integer. What Does Long Integer Mean? A long integer is a data type in computer science whose range is greater sometimes even double than that of the standard data type integer. Depending on the programming language and the computer machine processor, the size of the long integer will vary.

In some programming languages, the size of the long integer is standard and fixed across different platforms, while in others, it depends on the processor.