Java Programming - Language Fundamentals - Discussion
Discussion Forum : Language Fundamentals - General Questions (Q.No. 1)
1.
Which four options describe the correct default values for array elements of the types indicated?
- int -> 0
- String -> "null"
- Dog -> null
- char -> '\u0000'
- float -> 0.0f
- boolean -> true
Answer: Option
Explanation:
(1), (3), (4), (5) are the correct statements.
(2) is wrong because the default value for a String (and any other object reference) is null, with no quotes.
(6) is wrong because the default value for boolean elements is false.
Discussion:
64 comments Page 7 of 7.
Garima S said:
1 decade ago
Not able to undestand the given question.
Can anyone please explain it to me?
Can anyone please explain it to me?
Sundar said:
1 decade ago
Hi All,
Dog - There is no primitive datatype like 'Dog'. It is a User Defined type (a class created by User). By default it will hold null value.
For example:
public class Dog
{
//...
}
Dog myDog;
Here myDog will contain 'null' value by default.
Hope you understand. Have a nice day!
Dog - There is no primitive datatype like 'Dog'. It is a User Defined type (a class created by User). By default it will hold null value.
For example:
public class Dog
{
//...
}
Dog myDog;
Here myDog will contain 'null' value by default.
Hope you understand. Have a nice day!
SIJO.S said:
1 decade ago
What is the use of data type 'Dog'. I didnt heard about that!
Boopalan v said:
2 decades ago
Is there any primitive data type named Dog?
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