Question

What happens when an object is instantiated without providing initial values for instance variables?

a. The program crashes during execution.
b. Java provides default values like 0 for null and null for an object.
c. The program will not compile.
d. The program stops during execution and wait for information.

Answer 1

In Java, when an object is instantiated without initial values, the instance variables are automatically initialized with default values, such as 0 for primitives and null for objects.

Step-by-step explanation:

When an object is instantiated without providing initial values for instance variables, Java provides default values. For numeric primitive types like int, float, and double, the default is 0 or 0.0. Boolean primitive types default to false. Reference variables (variables that hold an object reference) default to null. Therefore, the program does not crash, fail to compile, or stop during execution waiting for information. The initialization of variables with default values is automatically handled by the Java runtime.