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java 2.0 programming (URGENT)

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What is “STATIC” & “THIS” concept in JAVA 2.0

Explain with example.

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java 2.0 programming (URGENT)

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static is a modifier to a variable or function definition. It indicates that the variable/function is a class level item, and not tied to an instantiated object.

this is a reference to the object for which the function was called. ie if i call:
a.thisfunc()

Object thisfunc() { return this;}

another reference to the “a” object will be returned.

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Check in the Downloads section of TechRepublic. Look for the terminology download. This will help you to understand the jargon a little better.

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A ‘static’ variable / object reference retains the same value through all the instances of the containing class.

Ex: class class1 {
static int a;
}

class1 c1, c2, c3 ;
c1.a = 123;

// now the value of a in c2 and c3 also will be 123, and changing its value in any of the instances of class ‘class1’ will be reflected in all the other instances.

A ‘static’ function can be referenced with instanciating the container class.
Ex: class class1 {
public static void func1 () {….}
public void func2 () {…}
}

class1.func1 () ;
// this is valid since func1 () is static.

class1.func2 ();
// this is invalid, func2 () requires an object of class1 to instanciated before referring to the function.
—————————-

‘This’ reference points to the ‘current’ object context. When a line of code in a class refers to ‘this’, it refers to the current object at the run-time.

Ex: class class1 {
int a;

public void function fun

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