Java OCA OCP Practice Question 1158

Question

What is true about the following program? 

package mypkg; //from  ww  w.  j  av  a 2 s  . c o  m
public class Main { 
        public void nested() { nested(2,true); } // g1 
        public int nested(int level, boolean height) { return nested(level); } 
        public int nested(int level) { return level+1; }; // g2 
     ? 
        public static void main(String[] v) { 
           System.out.print(new Main().nested()); 
        } 
}
  • A. It compiles successfully and prints 3 at runtime.
  • B. It does not compile because of line g1.
  • C. It does not compile because of line g2.
  • D. It does not compile for some other reason. 


D.

Note

The three overloaded versions of nested() compile without issue, since each method takes a different set of input arguments, making Options B and C incorrect.

The code does not compile, though, due to the first line of the main() method, making Option A incorrect.

The no-argument version of the nested() method does not return a value, and trying to output a void return type in the print() method throws an exception at runtime.




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