Quiz on Variables in Java

Which keyword is used to declare a variable in Java?

What is the default value of an int instance variable in Java?

What is the scope of a local variable in Java?

Which of these can not be used in a variable name?

Which variable is shared by all instances of a class?

What happens if you try to use an uninitialized local variable?

Which of the following is a valid variable declaration in Java?

What will be the output of the following?

int a = 10;
System.out.println(a);

. Which type of variable must be declared static inside a class to access it without creating an object?

What is the correct syntax to declare a constant variable in Java?

Which variable has the longest lifetime?

Which of the following variables is created when a method is called and destroyed when the method exits?

Which of the following best describes instance variables?

What is the output of the following code?

public class Test {
static int x = 5;
public static void main(String[] args) {
x = x + 10;
System.out.println(x);
}
}

What happens if you declare two variables with the same name in the same scope?