QUESTION 39 Given: 11. public class Commander { 12. public static void main(String[] args) { 13. String myProp = /* insert code here */ 14. System.out.println(myProp); 15. } 16. } and the command line: java -Dprop.custom=gobstopper Commander Which two, placed on line 13, will produce the output gobstopper? (Choose two.) A. System.load("prop.custom"); B. System.getenv("prop.custom"); C. System.pr..

QUESTION 38 Given: interface Animal { void makeNoise(); } class Horse implements Animal { Long weight = 1200L; public void makeNoise() { System.out.println("whinny"); } } 01. public class Icelandic extends Horse { 02. public void makeNoise() { 03. System.out.println("vinny"); 04. } 05. 06. public static void main(String[] args) { 07. Icelandic i1 = new Icelandic(); 08. Icelandic i2 = new Iceland..

QUESTION 37 Given: 04. public class Tahiti { 05. Tahiti t; 06. 07. public static void main(String[] args) { 08. Tahiti t = new Tahiti(); 09. Tahiti t2 = t.go(t); 10. t2 = null; 11. // more code here 12. } 13. 14. Tahiti go(Tahiti t) { 15. Tahiti t1 = new Tahiti(); 16. Tahiti t2 = new Tahiti(); 17. t1.t = t2; 18. t2.t = t1; 19. t.t = t2; 20. return t1; 21. } 22. } When line 11 is reached, how man..

QUESTION 36 Which two code fragments are most likely to cause a StackOverflowError? (Choose two.) A. int []x = {1,2,3,4,5}; for(int y = 0; y

QUESTION 35 Which can appropriately be thrown by a programmer using Java SE technology to create a desktop application? A. ClassCastException B. NullPointerException C. NoClassDefFoundError D. NumberFormatException E. ArrayIndexOutOfBoundsException Solution : D plus imformation ClassCastException 발생 원인 :--> 자바 빈즈 컴포넌트객체의 사용시 ClassCastException이 발생하는 경우는 동일한 VM상에서 동일한 이름을 갖는 서로다른 컴포넌트가 두번 메모리에 로드..

QUESTION 34 Given: 11. public void testIfA() { 12. if (testIfB("True")) { 13. System.out.println("True"); 14. } else { 15. System.out.println("Not true"); 16. } 17. } 18. public Boolean testIfB(String str) { 19. return Boolean.valueOf(str); 20. } What is the result when method testIfA is invoked? A. True B. Not true C. An exception is thrown at runtime. D. Compilation fails because of an error a..