Section 12.2 Check Point Questions6 questions

12.2.1

What is the advantage of using exception handling?

12.2.2

Which of the following statements will throw an exception?

System.out.println(1 / 0);
System.out.println(1.0 / 0);

12.2.3

Point out the problem in the following code. Does the code throw any exceptions?

long value = Long.MAX_VALUE + 1;
System.out.println(value);

12.2.4

What does the JVM do when an exception occurs? How do you catch an exception?

12.2.5

What is the output of the following code?

public class Test {
  public static void main(String[] args) {
    try {
      int value = 30;
      if (value < 40)
         throw new ArithmeticException("value is too small");
    }    
    catch (ArithmeticException ex) {
      System.out.println("value is too small");
    }
    System.out.println("Continue after the catch block");
  }
}

What would be the output if the line

int value = 30;
were changed to
int value = 50;

12.2.6

Show the output of the following code.

(a)
public class Test {
  public static void main(String[] args) {
    for (int i = 0; i < 2; i++) {
      System.out.print(i + " ");
      try {
        System.out.println(1 / 0);
      }
      catch (ArithmeticException ex) {
        System.out.println("Exception occurred");
      }
    }
  }
}

(b)
public class Test {
  public static void main(String[] args) {
    try {
      for (int i = 0; i < 2; i++) {
        System.out.print(i + " ");
        System.out.println(1 / 0);
      }
    }
    catch (ArithmeticException ex) {
      System.out.println("Exception occurred");
    }
  }
}