why use static variable in java

The common methods and member variables here refer to non-static methods and non-static member variablesFirst, Static is the meaning, is a modifier, can be used to modify variables or methods.Static member variables have global variables that do not

Why the Java Main method must be static Look at the type of information today to find a problem, you can not print this keyword in the main method information, then remember the previous knowledge, can not call this in the static method. The reason

Java Basics-Stack and heap, static, final modifier, inner class, and Java memory allocation (RPM)Java Stack and heapHeap: Random in orderStack: LIFO (last-in/first-out).The Java heap is a run-time data area in which the objects of the class allocate

Memory Allocation and variable storage location (heap, stack, method zone constant pool, method zone static zone), constant static Source: http://www.cnblogs.com/protected/p/6419217.html Intrusion and deletion!   When the program is running, data

"Reprint" Static keyword parsing in JavaThe static keyword is a hard-to-understand keyword that many friends encounter when writing code and reading code, and is one of the points of knowledge that interviewers in major companies like to ask during

One, static variable The member variable decorated by the static keyword is called a static variable, and before we talk about the difference between a member variable and a local variable, what is the difference between a static variable and a

Reproduced:Http://www.cnblogs.com/dolphin0520/p/3799052.htmlI. Purpose of the STATIC keywordIn the Java programming thought P86 page, there is a passage:　　The static method is the method without this. A non-static method cannot be called inside a

7-1, Constructors-Overview 1, Features: (1) The function name is the same as the class name. (2) The return value type is not defined. (3) There is no specific return value. 2, constructors Constructors are constructs that create objects that are

1, static modification of the variable is used to be referred to as statically variable, static modification of the method is referred to as a stationary method, static modified code block is called a block.1) Static variableStatic variables are

Static keyword is a lot of friends in the code and read the code when the more difficult to understand a keyword, but also the major companies in the interviewer like to ask in the interview one of the knowledge points. The following is the first to