Question
public class If1
{
static boolean b;
public static void main(String [] args)
{
short hand = 42;
if ( hand < 50 && !b ) /* Line 7 */
hand++;
if ( hand > 50 ); /* Line 9 */
else if ( hand > 40 )
{
hand += 7;
hand++;
}
else
--hand;
System.out.println(hand);
}
}
What will be the output of the program?
public class If1
{
static boolean b;
public static void main(String [] args)
{
short hand = 42;
if ( hand < 50 && !b ) /* Line 7 */
hand++;
if ( hand > 50 ); /* Line 9 */
else if ( hand > 40 )
{
hand += 7;
hand++;
}
else
--hand;
System.out.println(hand);
}
}
Answer: Option D
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In Java, boolean instance variables are initialized to false, so the if test on line 7 is
true and hand is incremented. Line 9 is legal syntax, a do nothing statement. The
else-if is true so hand has 7 added to it and is then incremented.
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