Questões para Certificação JAVA 1 4_pag10

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Certified Java Programmer Mock Exam 10
 double a = 1.0f / 3.0f; 
 double b = 1.0d / 3.0f; 
 double c = 1.0d / 3.0d; 
 System.out.print((a==b) + ","); 
 System.out.print((a==c) + ","); 
 System.out.print(b==c); 
 } 
} 
What is the result of attempting to compile and run the above program? 
a. Prints: false,false,false 
b. Prints: false,false,true 
c. Prints: false,true,false 
d. Prints: false,true,true 
e. Prints: true,false,false 
f. Prints: true,false,true 
g. Prints: true,true,false 
h. Prints: true,true,true 
i. Runtime error 
j. Compiler error 
k. None of the above 
 
Question 4 
class A { 
 static boolean a; 
 static boolean b; 
 static boolean c; 
 public static void main (String[] args) { 
 boolean x = a || (b = true) && (c = true); 
 System.out.print(a + "," + b + "," + c); 
 } 
} 
What is the result of attempting to compile and run the above program? 
a. Prints: false,false,false 
b. Prints: false,false,true 
c. Prints: false,true,false 
d. Prints: false,true,true 
e. Prints: true,false,false 
f. Prints: true,false,true 
g. Prints: true,true,false 
h. Prints: true,true,true 
i. Runtime error 
j. Compiler error 
k. None of the above 
 
Question 5 
class A { 
 public static void main (String[] args) { 
 int a = 1 || 2 ^ 3 && 5; 
 int b = ((1 || 2) ^ 3) && 5; 
 int c = 1 || (2 ^ (3 && 5)); 
 System.out.print(a + "," + b + "," + c); 
 } 
} 
What is the result of attempting to compile and run the above program? 
a. Prints: 0,0,0 
b. Prints: 0,0,3 
c. Prints: 0,3,0 
d. Prints: 0,3,3 
e. Prints: 3,0,0 
f. Prints: 3,0,3 
g. Prints: 3,3,0 
h. Prints: 3,3,3 
i. Runtime error 
j. Compiler error 
k. None of the above 
 
Question 6 
class L { 
 public static void main (String s[]) { 
 int i = 1 | 2 ^ 3 * 2 & 13 | 2; 
 System.out.println(i%5); 
 } 
} 
What is the result of attempting to compile and run the above program? 
a. Prints: 1 
b. Prints: 2 
c. Prints: 3 
d. Prints: 4 
e. Prints: 5