Certified Java Programmer Mock Exam

Question 1

class EBH201 {
  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 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.	Run-time error
j.	Compile-time error
k.	None of the above

Question 2

class EBH202 {
  static boolean a, b, c;
  public static void main (String[] args) {
    boolean x = (a = true) || (b = true) && (c = true);
    System.out.print(a + "," + b + "," + c);
}}

What is the result of attempting to compile and run the 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.	Run-time error
j.	Compile-time error
k.	None of the above

Question 3

class EBH203 {
  static boolean a, b, 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 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.	Run-time error
j.	Compile-time error
k.	None of the above

Question 4

class EBH204 {
  static boolean m1(String s, boolean b) {
    System.out.print(s + (b ? "T" : "F"));
    return b;
  }
  public static void main(String[] args) {
    m1("A",m1("B",false) || m1("C",true) || m1("D",false));
}}

What is the result of attempting to compile and run the program?

a.	Prints: ATBFCT
b.	Prints: ATBFCTDF
c.	Prints: BFCTAT
d.	Prints: BTCTDFAT
e.	Run-time error
f.	Compile-time error
g.	None of the above