How to cast in java The following program JavaChamp Team Flash Card

Question 117 / 297: The following program fails to compile, where could possibly be the compilation error(s)?
Choose 2

class Creature {}

class Bird extends Creature {}

class Falcon extends Bird {}

public class Tester {

	public static void main(String[] args) {
		Creature c1 = new Creature();
		Creature c2 = new Bird();

		Bird b1 = (Bird) c1; // Line 1
		Bird b2 = (Falcon) c2; // Line 2
		Bird b3 = c2; // Line 3
		Bird b4 = new Falcon(); // Line 4
		Bird b5 = (Bird) new Creature(); // Line 5
		Falcon f1 = b4; // Line 6
	}
}

Oracle Certified Professional Java Programmer JavaChamp Team How to cast in java?

Line 1

Line 2

Line 3

Line 4

Line 5

Line 6

<< First < Previous Next > Last >>

Explanation:

Line 3 causes a compilation error because Type mismatch: cannot convert from Creature to Bird

Line 6 causes a compilation error because Type mismatch: cannot convert from Bird to Falcon

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