Java SE 8 Programmer I (1z0-808) Free Practice Test

Question 1

Given:

What is the result?

A. 400.0 : 100.0

B. Compilation fails.

C. 200.0 : 100.0

D. 400.0 : 200.0

Correct Answer: A

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Question 2

Given:
class Mid {
public int findMid(int n1, int n2) {
return (n1 + n2) / 2;
}
}
public class Calc extends Mid {
public static void main(String[] args) {
int n1 = 22, n2 = 2;
// insert code here
System.out.print(n3);
}
}
Which two code fragments, when inserted at // insert code here, enable the code to compile and print 12?

A. Calc c = new Calc();
int n3 = C.findMid(n1,n2);

B. int n3 = Calc.findMid(n1, n2);

C. Mid m1 = new Calc();
int n3 = m1.findMid(n1, n2);

D. int n3 = super.findMid(n1,n3);

E. Calc c = new Mid();
int n3 = C.findMid(n1, n2);

Correct Answer: A,C

Explanation: Only visible for TestSimulate members. You can sign-up / login (it's free).

Question 3

Given:

What is the result?

A. 9 25

B. 3 5

C. Compilation fails.

D. 0 0

Correct Answer: B

Question 4

Which two statements are true?

A. Error is a RuntimeException.

B. Error class is unextendable.

C. Error is an Exception.

D. Error class is extendable.

E. Error is a Throwable.

Correct Answer: D,E

Question 5

Given the code fragment:
for (int ii = 0; ii < 3;ii++) {
int count = 0;
for (int jj = 3; jj > 0; jj--) {
if (ii == jj) {
++count;
break;
}
}
System.out.print(count);
continue;
}
What is the result?

A. 011

B. 123

C. 012

D. 000

Correct Answer: A

Question 6

Given:

And given the code fragment:

What is the result?

A. Compilation fails at line n2.

B. Read Book

C. Compilation fails at line n1.

D. Compilation fails at line n3.

E. Read E-Book

Correct Answer: B

Question 7

Given the code fragment:
StringBuilder sb = new StringBuilder();
sb.append("World");
Which fragment prints Hello World?
sb.insert(0, "Hello ");

A. System.out.println(sb);

B. System.out.println(sb);
sb.append(0, "Hello ");

C. System.out.println(sb);
sb.set(0, "Hello ");

D. System.out.println(sb);
sb.add(0, "Hello ");

Correct Answer: B

Question 8

Given:

What is the result?

A. false false

B. true false

C. true true

D. false true

E. Compilation fails

Correct Answer: D

Question 9

Give:

What is the result?

A. 13

B. The program fails to execute due to runtime error

C. An exception is thrown at runtime

D. 1525

E. Compilation fails

Correct Answer: D

Question 10

Given the code fragment:

What is the result?

A. A NullPointerException is thrown at runtime.

B. A
B

C. A 0
B 1

D. A element 0
B element 1

Correct Answer: A

Question 11

Given:

What is the result?

A. null:0
100:0

B. 0:0
100:200

C. null:null 100:null

D. 0:0
100:0

Correct Answer: D

Explanation: Only visible for TestSimulate members. You can sign-up / login (it's free).

Question 12

Given:

And the commands:
Javac Test.java
Java Test 12345
What is the result?

A. A NumberFormatException is thrown at runtime

B. Number us : 12345

C. AnArrayIndexOutOfBoundException is thrown at runtime.

D. A NullPointerException is thrown at runtime

Correct Answer: C

Question 13

Given:

What is the result?

A. The loop executes infinite times

B. The sum is 2

C. The sum is 15

D. Compilation fails

E. The sum is 14

Correct Answer: D

Question 14

Given:

What is the result?

A. A ClassCastException is thrown at runtime

B. Shining Sun
Twinkling Star
Shining Sun

C. Compilation fails

D. Shining Sun
Shining Sun
Shining Sun

Correct Answer: A

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Oracle Java SE 8 Programmer I (1z0-808) Free Practice Test