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Cuestionario 14. 1Z0-808
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- Pregunta 1 de 5
1. Pregunta
Given:
Base.java class Base { public void test() { System.out.println("Base "); } }=======================================
DerivedA.java class DerivedA extends Base { public void test() { System.out.println("DerivedA"); } }========================================
DerivedB.java class DerivedB extends Base { public void test() { System.out.println("DerivedB"); } public static void main() { Base b1 = new DerivedB(); Base b2 = new DerivedA(); Base b3 = new DerivedB(); b1 = (Base) b3; Base b4 = (DerivedA) b3; b1.test(); b4.test(); } }What is the result?
CorrectoIncorrecto - Pregunta 2 de 5
2. Pregunta
Given the code fragment:
public static void main(String[] args) { ArrayList myList = new ArrayList(); String[] myArray; try { while (true) { myList.add("My String"); } } catch (RuntimeException re) { System.out.println("Caught a RuntimeException"); } catch (Exception e) { System.out.println("Caught a Exception"); } System.out.println("Ready to use"); }What is the result?
CorrectoIncorrecto - Pregunta 3 de 5
3. Pregunta
Given:
System.out.println("5 + 2 = " + 3 + 4); System.out.println("5 + 2 = " + (3 + 4));What is the result?
CorrectoIncorrecto - Pregunta 4 de 5
4. Pregunta
Given:
public static void main(String[] args) { String ta = "A "; ta = ta.concat("B "); String tb = "C "; ta = ta.concat(tb); ta.replace('C', 'D'); ta = ta.concat(tb); System.out.println(ta); }What is the result?
CorrectoIncorrecto - Pregunta 5 de 5
5. Pregunta
Given the code fragment:
public static void main(String[] args) { int x = 5; while (isAvailable(x)) { System.out.print(x); } } public static boolean isAvailable(int x) { return x-- > 0 ? true : false; }Which modification enables the code to print 54321?
CorrectoIncorrecto