| S.No. | Overloaded Methods | Overridden Methods | |
| 1. | Arguments | Must Change | Must not change |
| 2. | Return Type | Can change | Can’t change except for covariant returns |
| 3. | Exceptions | Can change | Can reduce or eliminate. Must not throw new or broader checked exception |
| 4. | Access Modifiers | Can change | Must not make more restrictive (can be less restrictive) |
| 5. | Invocation | Reference type determines which overloaded version is selected. Happens at compile time. | Object type determines which method is selected. Happens at runtime. |
Will it be called overriding if I do not change the parameters or return type, instead throw a different exception in the method signature?
Yes it will be called overriding, however it must not throw new or broader checked exception.