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Java Programming Fundamentals Practice Test

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QuestionClick to flip

What will be the output of the program?

class Super
{ 
    public int i = 0; 

    public Super(String text) /* Line 4 */
    {
        i = 1; 
    } 
} 

class Sub extends Super
{
    public Sub(String text)
    {
        i = 2; 
    } 

    public static void main(String args[])
    {
        Sub sub = new Sub(Hello); 
        System.out.println(sub.i); 
    } 
}

AnswerClick to flip back

Compilation fails

💡 Explanation:

A default no-args constructor is not created because there is a constructor supplied that has an argument, line 4. Therefore the sub-class constructor must explicitly make a call to the super class constructor:

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