Questões para Certificação JAVA 1 4_pag49

Prévia do material em texto

Certified Java Programmer Mock Exam 49
 Error error = new Error(); 
 Exception exception = new Exception(); 
 System.out.print((exception instanceof Throwable) + ","); 
 System.out.print(error instanceof Throwable); 
 } 
} 
What is the result of attempting to compile and run the program? 
a. Prints: false,false 
b. Prints: false,true 
c. Prints: true,false 
d. Prints: true,true 
e. Compiler Error 
f. Run Time Error 
g. None of the Above 
 
Question 13 
class Orange { 
 public static void main(String args[]) { 
 byte b = -1; 
 switch(b) { 
 case 0: 
 System.out.print("zero "); 
 break; 
 case 100: 
 System.out.print("100 "); 
 break; 
 case 1000: 
 System.out.print("1000 "); 
 break; 
 default: System.out.print("Default "); 
 } 
 } 
} 
What is the result of attempting to compile and run the above program? 
a. Prints: zero 
b. Prints: 100 
c. Prints: 1000 
d. Prints: Default 
e. Runtime error 
f. Compiler error 
g. None of the above 
 
Question 14 
class Violet { 
 public static void main(String args[]) { 
 int x = -5; 
 int success = 0; 
 do { 
 switch(x) { 
 case 0: System.out.print("0"); 
 x += 5; break; 
 case 1: System.out.print("1"); 
 x += 3; break; 
 case 2: System.out.print("2"); 
 x += 1; break; 
 case 3: System.out.print("3"); 
 success++; break; 
 case 4: System.out.print("4"); 
 x -= 1; break; 
 case 5: System.out.print("5"); 
 x -= 4; break; 
 case 6: System.out.print("6"); 
 x -= 5; break; 
 default: 
 x += x