To solve this question, we need to trace the execution of the code and see how the value of the variable s
changes.
Starting with the main method, it creates a new instance of the Plane
class and calls its method s1()
.
In the s1()
method, it calls the method sl()
.
In the sl()
method, it calls the method s2()
. Since s2()
throws an exception, execution of the sl()
method is transferred to the catch block. Here, it appends "c" to the value of s
.
Control is then transferred back to the s1()
method, which then returns to the main method. Finally, the value of s
is printed to the console, which is "-c" since the catch block was executed.
Therefore, the answer is: B. -c