Can we have parameterized constructors in Java?

Can we have parameterized constructors in Java?

Yes, we can have.
This is also called as constructor overloading.
Example:
Class clsEmp
{
        int age;
        clsEmp()
        {
           age = 21;
        }
        clsEmp(int a)
        {
           age = a;
        }
}
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