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Java

Posted by Aditya Sheode
Aditya Sheode
1,291 Points

What are parameters for?

in java objects we declared the method like public void myMethod( " //parameters go here " ){ } can someone tell me what are parameters for?

2 Answers

hbdc
hbdc
13,725 Points
hbdc
hbdc
13,725 Points

What is passed "to" a method is referred to as an "argument". The "type" of data that a method can receive is referred to as a "parameter".

Parameters will be used in the method as a local (declared inside a method) variable would.

Aditya Sheode
Aditya Sheode
1,291 Points
Aditya Sheode
Aditya Sheode
1,291 Points

Umm can you elucidate a bit?

hbdc
hbdc
13,725 Points

Basically they are used if you want to pass a value to a method and do something with it.

Let's say you have a method which calculates the area of a square.

if you want to be able to calculate the area of a square with different values for a side you will pass a parameter as the value of the side:

publice int getArea(int side) {
int area = side*side;
return area;
}

int b = getArea(2);

The code above will set the value of b to 4.

If you do not go with a parameter you will not be able to change the value passed as a side to the method.

Hope that clarifies things.