Java OCA OCP Practice Question 1757

Question

How many lines of text does the following program print? 

package mypkg;/*  w w w  .  jav a2 s  .co  m*/
import java.io.IOException;
public class Main {
   public void m() throws IOException {
      new IOException("Not ready");
   }
   public static void main(String[] b) throws Exception {
      try {
         new Main().m();
      } catch (RuntimeException b) {  // y1
         System.out.println(b);
         throw new IOException();  // y2
      } finally {
         System.out.println("complete");
      }
   }
}
  • A. One
  • B. Two
  • C. The code does not compile because of line y1.
  • D. The code does not compile because of line y2.


C.

Note

The code does not compile because the variable b is used twice in the main() method, both in the method declaration and in the catch block.

Option C the correct answer.

If a different variable name was used in one of the locations, the program would print one line, complete, making Option A the correct answer.

Note that while an exception is created inside the m() method, it is not thrown.




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