int and long

Basic data typesA primitive type, or a built-in type, is a special type that differs from the class in Java. They are the most frequently used types in our programming.Java is a strongly typed language, and the first declaration of a variable must

To view system Information:~# uname-a (Linux view version current operating system kernel information)Linux iz23onhpqvwz 3.13.0-30-generic #54-ubuntu SMP Mon June 9 22:47:59 UTC i686 i686 i686 gnu/linuxSee if it's CentOS or Ubuntu:[Email protected]:~

1 Why learn python?2 What is the way to learn python?3 How does Python compare to other languages like Java, PHP, C, C #, C + +, and more?4 description of explanatory and compiled programming languages?5 Python interpreter types and features?6-bit

The perverted bit arithmetic of javascriptvar a = "10" | 0;alert (a);Alert (typeof a);The result is 10,number.This means that the statement can convert the string to number.If:var a = "SSS" | 0;alert (a);The result is 0.parseint ("SSS"), it returns

What is the origin of Python?Interpreter and compiler differences?What is the difference between a compiled language and an interpreted language?The first Python programWrite only one code statement per lineNo spaces in front of each line of

One[ROOT@LINUXZGF ~] #getconf long_bit[ROOT@LINUXZGF ~] #getconf word_bit(the int and long types in a 32-bit system are generally 4 bytes, and the int type in the 64-bit system is still 4 bytes, but LONG has become a 8-byte inux "getconf word_bit"

Reprinted and amended, original connection: http://www.cnblogs.com/911/archive/2008/05/20/1203477.htmlA bitwise operation is a binary-based operation. In system software, it is often necessary to deal with bits problems.the C language provides 6 bit

Example 1: Output of a char array1System.out.println ("H" + "a");//Output: Ha2System.out.println (' H ' + ' a ');//Output: 1693System.out.println ("" + ' H ' + ' a ');//Output: Ha4System.out.println ("//////////////////");5System.out.println ("2 + 2

Day21. Pycharm Installation#专业版#no汉化版2. Data typeOperator:Arithmetic operations1 # + addition 2# - subtraction 3# * multiplication 4 # / Division 5# % of the remainder of a divided by B 6# * * Power 7# // ask for an

The first part of the basic Python (80 questions) Why learn python? What is the way to learn python? Python vs. Java, PHP, C, C #, C + +, and other languages? Describe the explanatory and compiled programming languages? What are the

Recently re-learning C language, using the book for Brian W.kernignan and Dennis M.ritchie "C programming language." Read the bit operation tonight and write some simple test procedures.The C language provides 6 bit manipulation operators. These

1.3.1 Source CodePython source code with ". Py" as the extension, interpreted by the Python program, do not need to compile1.3.2-byte codeThe Python source file is compiled with a file extension of ". PYc", which provides a method for compiling the

In the interview, the int length in C is often asked, the following summarizes as the information:First look at the general rules:Standard C specifies that the int length is equal to the machine word size, Short's representation range cannot be

Recent review of C + + related content, decided to record their review process here. I wrote some words before, but I didn't insist on continuous writing, so after learningBasic and forget the light, the main is no practice, this time decided to

The main difference between Python2 and Python3(You may understand there is not in place, and then come back to change) Reference: Liu Zhijun, what are the main differences between Python 2 and Python 3?

Are you planning to optimize the Hashcode () method? Do you want to bypass the regular expression? Lukas Eder introduces a number of simple and convenient performance optimization tips as well as extension program performance techniques.Recently,

1. Some features of the string 1.1 extensive(1) A string can be treated as an array of character types-----> so may involve sorting + lookups;(2) Many problems can be converted to the method of string type to solve;　　 It is important to note that

I. Introduction to BASIC TypesTwo guidelines for basic types: In Java, if you do not specify a type for an integer, the default is int, the type is not specified on a decimal, and the double type is the default. Basic types are small to

because the computer operation is a modulo operation, the representation of the data range is limited, such as int (c + + in the same int and long) expression range ( -2^31~2^31-1), unsigned long (unsigned integer) is (0~2^32-1), are about billions

C + + data typesthe object that the computer handles is the data, and the data is in a certain form (for example, integers, floating-point numbers, characters, etc.). There are often some links between different data (for example, a number of