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♻️TIPS: Will a finally block execute even if the catch block defines a return statement?

✅ Imagine this scenario: A guy promises to buy diamonds for his girlfriend and treat her to coffee. The girl inquires about what will happen if he meets with an exceptional condition during the diamond purchase, such as inadequate funds. To the girl’s disappointment, the boy replies that he’ll still treat her to coffee.
You can compare the try block to the purchase of diamonds and the finally block to the coffee treat. The girl gets the coffee treat regardless of whether the boy successfully purchases the diamonds. The figure shows this conversation.

♻️ OCA 1Z0-808 Exam Question 2: What is the output if this class is run with java Indexing cars carts?

public class Indexing {
public static void main(String... books) {
StringBuilder sb = new StringBuilder();
for (String book : books)
sb.insert(sb.indexOf("c"), book);
System.out.println(sb);
}
}

A. cars
B. cars carts
C. ccars arts
D. The code does not compile.
E. The code compiles but throws an exception at runtime.

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✅ Answer E. The first time through the loop, we are calling indexOf on an empty StringBuilder. This returns -1. Since we cannot insert at index -1, the code throws a StringIndexOutOfBoundsException.

♻️ OCA 1Z0-808 Exam Question 1: Which of the following method signatures is a valid declaration of an entry point in a
Java application?

A. public void main(String[] args)
B. public static void main()
C. private static void start(String[] mydata)
D. public static final void main(String[] mydata)

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✅ Answer D. An entry point in a Java application consists of a main() method with a single String[] argument, return type of void, and modifiers public and static. The name of the variable in the input argument does not matter. Option A is missing the static modifier, Option B is missing the String[] argument, and Option C has the wrong access modifier and method name. Only Option D fulfills these requirements. Note that the modifier final is optional and may be added to an entry point method.

📣📣📣 JAVA Certification OCA Exam: The first step on the road to a Java certification is the Oracle Certified Associate 1Z0-808 (OCA 8) exam. We are gonna provide a series of questions with answers and explanations in this platform. Practicing this series, you will get the confidence to attend the exam or to face the interview. Stay tuned by liking and sharing this page. :)

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Java Certification - I (OCA): Practice for 1Z0-808 Exam Be an Oracle Certified Associate(OCA) Java SE 8 Programmer-I; Preparation for Interview. MCQ with solution & explanation