Thread: cppNEWBIE "bool Save(const char *name) const;" why const???

Hi,
I am new to cpp
I have some programs and have a question about "identifiers at the end of the method name"
When and why are they necessary?
For example, Consider the following code

Code:

class Table1D
{
...
	bool Save(const char *name) const;	
...
}

In other languages I will simply write something like

Code:

 bool Save(const char *name)

(without the const identifier)
Another example is here:

Code:

float Triangle(const blob &p1, const blob &p2) const { return 0.5f*fabs((p1.x-x)*(p2.y-y)-(p1.y-y)*(p2.x-x)); }

Why "const" goes to the end, and where should I put an identifier in the end?

Thanks.