Homework SourseAs it pertains to inheritance differentiate between the conc
As it pertains to inheritance, differentiate between the concept of method overloading and method overriding. Give ONE example of each. (NB: Example alone counts for 0).
Solution
The difference between the concept of method overloading and method overriding :-
Example :-
class Example
{
void m1() {
System.out.println(\"Hi\");
}
class Sample extends Example
{
void m1()
{
System.out.println(\"Hello\");
}
public static void main(String[] args)
{
Sample s = new Sample();
s.m1();
}
}
Example :-
class Example
{
void m1()
{
System.out.println(\"No-arg add\");
}
void m1(int a)
{
System.out.println(\"int-arg add\");
}
void m1(String str)
{
System.out.println(\"String-arg add\");
}
public static void main(String[] args)
{
Example e = new Example();
e.m1();
e.m1(5);
e.m1(\"abc\");
}
}
| method Overriding | method Overloading |
| Providing new implementation to super class method in subclass is called method Overriding | creating new method with same name with different parameters is called method Overloading |
| We can overide only in sub class | we can overload in same class or in sub class |
| We can\'t override final method | we can overload final method |
| Example :- class Example { void m1() { System.out.println(\"Hi\"); } class Sample extends Example { void m1() { System.out.println(\"Hello\"); } public static void main(String[] args) { Sample s = new Sample(); s.m1(); } } | Example :- class Example { void m1() System.out.println(\"No-arg add\"); } System.out.println(\"int-arg add\"); } void m1(String str) System.out.println(\"String-arg add\"); } { Example e = new Example(); e.m1(); } } |
