what are the types of constructer explain with example
Answers were Sorted based on User's Feedback
Answer / kailash
there are two types of Constructors .
1. Parameterized Constructor inwhich we give arguments .
2. Default constructor , there no argument is given .
for each class there must be a defult constructor .
Is This Answer Correct ? | 14 Yes | 2 No |
Answer / siri
there are three kinds parametrized,default and copy consturctor
Is This Answer Correct ? | 7 Yes | 0 No |
Answer / srinu
There are Two types of constructors
1)Parameterized constructor in which give the parameter
EX:-
class A1
{
A1(int a)
{
System.out.println("HAI HOW ARE U");
}
}
public class A
{
public static void main(String k[])
{
A1 a1=new A1(5);
}
}
2)Default Constructor :- There are no argument in the
constructor is called Default Constructor
class A1
{
A1()
{
System.out.println("HAI ");
}
}
public class A
{
public static void main(String k[])
{
A1 a1=new A1();
}
}
Note: In our java class their is constructor JVM will create
one default constructor.If our class contain default
constructor or parameter constructor or both then that
time JVM will not create Default constructor
Is This Answer Correct ? | 5 Yes | 2 No |
What is javax annotation generated?
Which method is used to create the daemon thread?
Can a method be static and synchronized?
public class Dog { private int weight; public int getweight(){ return weight; } public void SetWeight(int newWeight){ if (newWeight > 0){ weight = newWeight; } } } public class TestDog { public static void main(String[] args) { Dog d = new Dog(); System.out.println("Dog d's weight is " + d.getWeight()); d.setWeight(42); System.out.println("Dog d's weight is " + d.getWeight()); d.setweight(-42); System.out.println("Dog d's weight is " + d.getWeight()); } } class dog is compiled but there is an error in class TestDog when compiled and the error is with dot notations. I want to kmow why there is error in testdog class when compiled.
Is java an api?
How do you find lambda?
What is java lang?
What is meant by java se?
Why is struts used in java?
In which language eclipse is developed?
What is the java api?
How do I enable java in firefox?