what is static keyword in java
Static keyword is used a lot in java.
Static means, you
can access those static variables
without creating an object,
just by using a class name.
This means that only one instance of
that static member is created which
is shared across all instances of the class.
Basically we use static keyword when
all members share same instance.static in java
//Java Program to get the cube of a given number using the static method
using static before a method or variable we can access it by not creating a
instance of it.in the program we directly used student.cube(5)
class Calculate{
static int cube(int x){
return x*x*x;
}
public static void main(String args[]){
int result=Calculate.cube(5);
System.out.println(result);
}
}java what is static
In the Java programming language, the keyword static indicates that the particular member belongs to a type itself,
rather than to an instance of that type.
This means that only one instance of that static member is created which is shared across all instances of the class.static in java
static keyword is a non-access modifier. static keyword can be used with
class level variable, block, method and inner class or nested class.static data and static methods in java
class JavaExample{
private static String str = "BeginnersBook";
//Static class
static class MyNestedClass{
//non-static method
public void disp() {
/* If you make the str variable of outer class
* non-static then you will get compilation error
* because: a nested static class cannot access non-
* static members of the outer class.
*/
System.out.println(str);
}
}
public static void main(String args[])
{
/* To create instance of nested class we didn't need the outer
* class instance but for a regular nested class you would need
* to create an instance of outer class first
*/
JavaExample.MyNestedClass obj = new JavaExample.MyNestedClass();
obj.disp();
}
}Copyright © 2021 Codeinu
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