OCP Java SE 8 Exam - Sample Questions - Exceptions and Assertions
1 like3,391 views
This document contains sample questions and explanations for the OCP Java SE 8 exam. The questions cover topics like exceptions and assertions. One question asks which exception would be thrown from a chained exception example. Another asks to identify the output of a try-catch-finally program. A third discusses the behavior of an auto-closeable resource in a try-with-resources block. The document provides explanations for each answer.
![Ques&on
Consider the following program:
class ChainedExcep/on {
public sta/c void foo() {
try {
throw new ArrayIndexOutOfBoundsExcep/on();
} catch(ArrayIndexOutOfBoundsExcep/on oob) {
Run/meExcep/on re = new Run/meExcep/on(oob);
re.initCause(oob);
throw re;
}
}
public sta/c void main(String []args) {
try {
foo();
} catch(Excep/on re) {
System.out.println(re.getClass());
} } }
h@ps://ocpjava.wordpress.com
When executed this program from
main() by calling foo() method,
prints which of the following?
A. class
java.lang.Run/meExcep/on
B. class
java.lang.IllegalStateExcep/on
C. class java.lang.Excep/on
D. class
java.lang.ArrayIndexOutOfBou
ndsExcep/on](https://image.slidesharecdn.com/exceptionsandassertions-160330142150-160412052222/85/OCP-Java-SE-8-Exam-Sample-Questions-Exceptions-and-Assertions-2-320.jpg)
![Answer
Consider the following program:
class ChainedExcep/on {
public sta/c void foo() {
try {
throw new ArrayIndexOutOfBoundsExcep/on();
} catch(ArrayIndexOutOfBoundsExcep/on oob) {
Run/meExcep/on re = new Run/meExcep/on(oob);
re.initCause(oob);
throw re;
}
}
public sta/c void main(String []args) {
try {
foo();
} catch(Excep/on re) {
System.out.println(re.getClass());
} } }
h@ps://ocpjava.wordpress.com
When executed this program from
main() by calling foo() method,
prints which of the following?
A. class
java.lang.Run/meExcep/on
B. class
java.lang.IllegalStateExcep&on
C. class java.lang.Excep/on
D. class
java.lang.ArrayIndexOutOfBou
ndsExcep/on](https://image.slidesharecdn.com/exceptionsandassertions-160330142150-160412052222/85/OCP-Java-SE-8-Exam-Sample-Questions-Exceptions-and-Assertions-3-320.jpg)
![Ques&on
Consider the following program:
class EHBehavior {
public sta/c void main(String []args) {
try {
int i = 10/0; // LINE A
System.out.print("aXer throw -> ");
} catch(Arithme/cExcep/on ae) {
System.out.print("in catch -> ");
return;
} finally {
System.out.print("in finally -> ");
}
System.out.print("aXer everything");
} }
Which one of the following op/ons best describes the behaviour of this program?
A. The program prints the following: in catch -> in finally -> aXer everything
B. The program prints the following: aXer throw -> in catch -> in finally -> aXer
everything
C. The program prints the following: in catch -> aXer everything
D. The program prints the following: in catch -> in finally ->
h@ps://ocpjava.wordpress.com](https://image.slidesharecdn.com/exceptionsandassertions-160330142150-160412052222/85/OCP-Java-SE-8-Exam-Sample-Questions-Exceptions-and-Assertions-5-320.jpg)
![Answer
Consider the following program:
class EHBehavior {
public sta/c void main(String []args) {
try {
int i = 10/0; // LINE A
System.out.print("aXer throw -> ");
} catch(Arithme/cExcep/on ae) {
System.out.print("in catch -> ");
return;
} finally {
System.out.print("in finally -> ");
}
System.out.print("aXer everything");
} }
Which one of the following op/ons best describes the behaviour of this program?
A. The program prints the following: in catch -> in finally -> aXer everything
B. The program prints the following: aXer throw -> in catch -> in finally -> aXer
everything
C. The program prints the following: in catch -> aXer everything
D. The program prints the following: in catch -> in finally ->
h@ps://ocpjava.wordpress.com](https://image.slidesharecdn.com/exceptionsandassertions-160330142150-160412052222/85/OCP-Java-SE-8-Exam-Sample-Questions-Exceptions-and-Assertions-6-320.jpg)
![Ques&on
Consider the following program:
import java.u/l.Scanner;
class AutoCloseableTest {
public sta/c void main(String []args) {
try (Scanner consoleScanner = new Scanner(System.in)) {
consoleScanner.close(); // CLOSE
consoleScanner.close();
}
}
}
Which one of the following statements is correct?
A. This program terminates normally without throwing any excep/ons
B. This program throws an IllegalStateExcep/on
C. This program throws an IOExcep/on
D. This program throws an AlreadyClosedExcep/on
h@ps://ocpjava.wordpress.com](https://image.slidesharecdn.com/exceptionsandassertions-160330142150-160412052222/85/OCP-Java-SE-8-Exam-Sample-Questions-Exceptions-and-Assertions-8-320.jpg)
![Answer
Consider the following program:
import java.u/l.Scanner;
class AutoCloseableTest {
public sta/c void main(String []args) {
try (Scanner consoleScanner = new Scanner(System.in)) {
consoleScanner.close(); // CLOSE
consoleScanner.close();
}
}
}
Which one of the following statements is correct?
A. This program terminates normally without throwing any excep&ons
B. This program throws an IllegalStateExcep/on
C. This program throws an IOExcep/on
D. This program throws an AlreadyClosedExcep/on
h@ps://ocpjava.wordpress.com](https://image.slidesharecdn.com/exceptionsandassertions-160330142150-160412052222/85/OCP-Java-SE-8-Exam-Sample-Questions-Exceptions-and-Assertions-9-320.jpg)
![Ques&on
Consider the following program:
class Asser/onFailure {
public sta/c void main(String []args) {
try {
assert false;
} catch(Run/meExcep/on re) {
System.out.println("Run/meExcep/on");
} catch(Excep/on e) {
System.out.println("Excep/on");
} catch(Error e) { // LINE A
System.out.println("Error" + e);
} catch(Throwable t) {
System.out.println("Throwable");
}
}
}
h@ps://ocpjava.wordpress.com
This program is invoked from the
command line as follows:
java Asser)onFailure
Choose one of the following op/ons
describes the behaviour of this
program:
A. Prints "Run/meExcep/on" in
console
B. Prints "Excep/on"
C. Prints "Error"
D. Prints "Throwable"
E. Does not print any output on
console](https://image.slidesharecdn.com/exceptionsandassertions-160330142150-160412052222/85/OCP-Java-SE-8-Exam-Sample-Questions-Exceptions-and-Assertions-11-320.jpg)
![Answer
Consider the following program:
class Asser/onFailure {
public sta/c void main(String []args) {
try {
assert false;
} catch(Run/meExcep/on re) {
System.out.println("Run/meExcep/on");
} catch(Excep/on e) {
System.out.println("Excep/on");
} catch(Error e) { // LINE A
System.out.println("Error" + e);
} catch(Throwable t) {
System.out.println("Throwable");
}
}
}
h@ps://ocpjava.wordpress.com
This program is invoked from the
command line as follows:
java Asser)onFailure
Choose one of the following op/ons
describes the behaviour of this
program:
A. Prints "Run/meExcep/on" in
console
B. Prints "Excep/on"
C. Prints "Error"
D. Prints "Throwable"
E. Does not print any output on
console](https://image.slidesharecdn.com/exceptionsandassertions-160330142150-160412052222/85/OCP-Java-SE-8-Exam-Sample-Questions-Exceptions-and-Assertions-12-320.jpg)
OCP Java SE 8 Exam - Sample Questions - Exceptions and Assertions
- 1. OCP Java SE 8 Exam Sample Questions Excep&ons and Asser&ons Hari Kiran & S G Ganesh
- 2. Ques&on Consider the following program: class ChainedExcep/on { public sta/c void foo() { try { throw new ArrayIndexOutOfBoundsExcep/on(); } catch(ArrayIndexOutOfBoundsExcep/on oob) { Run/meExcep/on re = new Run/meExcep/on(oob); re.initCause(oob); throw re; } } public sta/c void main(String []args) { try { foo(); } catch(Excep/on re) { System.out.println(re.getClass()); } } } h@ps://ocpjava.wordpress.com When executed this program from main() by calling foo() method, prints which of the following? A. class java.lang.Run/meExcep/on B. class java.lang.IllegalStateExcep/on C. class java.lang.Excep/on D. class java.lang.ArrayIndexOutOfBou ndsExcep/on
- 3. Answer Consider the following program: class ChainedExcep/on { public sta/c void foo() { try { throw new ArrayIndexOutOfBoundsExcep/on(); } catch(ArrayIndexOutOfBoundsExcep/on oob) { Run/meExcep/on re = new Run/meExcep/on(oob); re.initCause(oob); throw re; } } public sta/c void main(String []args) { try { foo(); } catch(Excep/on re) { System.out.println(re.getClass()); } } } h@ps://ocpjava.wordpress.com When executed this program from main() by calling foo() method, prints which of the following? A. class java.lang.Run/meExcep/on B. class java.lang.IllegalStateExcep&on C. class java.lang.Excep/on D. class java.lang.ArrayIndexOutOfBou ndsExcep/on
- 17. • Check out our latest book for OCPJP 8 exam preparation • http://amzn.to/1NNtho2 • www.apress.com/9781484218358 (download source code here) • https://ocpjava.wordpress.com (more ocpjp 8 resources here) http://facebook.com/ocpjava