Java MCQ: Which of the following is the default value of a local variable in Java?
Answer:
Explanation:
In Java, local variables are variables that are declared within a method, constructor, or block and are only accessible within that scope. Unlike instance variables and static variables, local variables do not have a default value.
Local variables must be explicitly initialized before they are used; otherwise, the compiler will throw an error. This behavior ensures that local variables do not contain any unpredictable or garbage values, which helps in avoiding logical errors in the program.
Understanding the initialization requirements for local variables is crucial for writing robust Java code, as it prevents the use of uninitialized variables, which could lead to runtime exceptions or unexpected results.
Reference links:
https://www.rameshfadatare.com/learn-java-programming/
https://www.javaguides.net/p/java-tutorial-learn-java-programming.html