複選題
第6題 Given: 1. public class Breaker{ 2. static String o = ""; 3. public static void main(String[] args){ 4. z: 5. o = o + 2; 6. for(int x=3; x<8; x++){ 7. if(x == 4) break; 8. if(x == 6) break z; 9. o = o + x; 10. } 11. System.out.println(o); 12. } 13. } What is the result?
(A) 23
(B) 234
(C) 235
(D) 2345
(E) 2357 A
(B) 23457 A
(C) Compilation fails.

Given: 1. public class TestString1{ 2. public static void main(String[] args){ 3. String str = "420"; 4. str += 42; 5. System.out.print(str); 6. } 7. } What is the output? (A) 42 (B) 420 (C) 462 (D) 42042 (E) Compilation fails. F. An exception is thrown at runtime.

Given: 1. public class Test{ 2. public static void main(String[] args){ 3. int x = 5; SCJP 6.0 認證教戰手冊 黃彬華著 碁峰出版 2 4. boolean b1 = true; 5. boolean b2 = false; 6. 7. if((x==4) && !b2) 8. System.out.print("1 "); 9. System.out.print("2 "); 10. if((b2=true) && b1) 11. System.out.print("3 "); 12. } 13. } What is the result? (A) 2 (B) 3 (C) 1 2 (D) 2 3 (E) 1 2 3 F. Compilation fails. G. An exception is thrown at runtime.

Given: 22. public void go(){ 23. String o = ""; 24. z: 25. for(int x=0; x

第5題 Given: 10. int x = 0; 11. int y = 10; 12. do{ 13. y--; 14. ++x; 15. }while(x < 5); 16. System.out.print(x + "," + y); What is the result? (A) 5,6 (B) 5,5 (C) 6,5 (D) 6,6

第7題 SCJP 6.0 認證教戰手冊 黃彬華著 碁峰出版 4 Given: 1. public class Breaker2{ 2. static String o = ""; 3. public static void main(String[] args){ 4. z: 5. for(int x=2; x

第8題 Given: 1. public class Spock{ 2. public static void main(String[] args){ 3. Long tail = 2000L; 4. Long distance = 1999L; 5. Long story = 1000L; 6. if((tail>distance) ^ ((story*2)==tail)) 7. System.out.print("1"); 8. if((distance+1 != tail) ^ ((story*2)==distance)) 9. System.out.print("2"); 10. } 11. } What is the result? (A) 1 (B) 2 (C) 12 (D) Compilation fails. (E) No output is produced. F. An exception is thrown at runtime.

第9題 Given: 11. String[] elements = {"for", "tea", "too"}; 12. String first = (elements.length>0) ? elements[0] : null; What is the result? (A) Compilation fails. (B) An exception is thrown at runtime. (C) The variable first is set to null. (D) The variable first is set to elements[0]

第10題 Given: 1. import java.util.*; 2. public class Quest{ 3. public static void main(String[] args){ 4. String[] colors = 5. {"blue","red","green","yellow","orange"}; 6. Arrays.sort(colors); 7. int s2 = Arrays.binarySearch(colors, "orange"); 8. int s3 = Arrays.binarySearch(colors, "violet"); 9. System.out.print(s2 + "" + s3); 10. } 11. } What is the result? (A) 2-1 (B) 2-4 (C) 2-5 (D) 3-1 (E) 3-4 F. 3-5 G. Compilation fails. H. An exception is thrown at runtime.

第11題 Given: 1. class Alligator{ 2. public static void main(String[] args){ 3. int[]x[] = {{1,2},{3,4,5},{6,7,8,9}}; SCJP 6.0 認證教戰手冊 黃彬華著 碁峰出版 6 4. int[][]y = x; 5. System.out.print(y[2][1]); 6. } 7. } What is the result? (A) 2 (B) 3 (C) 4 (D) 6 (E) 7 F. Compilation fails.

第13題 Given: 1. public class Barn{ 2. public static void main(String[] args){ private void bar(int x){} public void bar(int x){} public int bar(String x){return 1;} public Alpha bar(int x){} public void bar(int x, int y){} public int bar(int x){return x;} Methods SCJP 6.0 認證教戰手冊 黃彬華著 碁峰出版 7 3. new Barn.go("hi", 1); 4. new Barn.go("hi", "world", 2); 5. } 6. public void go(String... y, int x){ 7. System.out.print(y[y.length-1] + " "); 8. } 9. } What is the result? (A) hi hi (B) hi world (C) world world (D) Compilation fails. (E) An exception is thrown at runtime.