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Inheritance Quizzes ⬇️⬇️

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JDBC Quiz A good way to debug JDBC-related problems is to enable? A) JDBC tracing and Exception handling B) Exception handling C) JDBC tracing D) Exception handling Choose the correct option

JDBC Quiz Which of the following is advantage of using JDBC connection pool? A) Using less memory B) Slow performance C) Better performance D) Using more memory

JDBC QUIZ Which of the following driver converts the JDBC calls into database-specific calls? A) Native API-partly Java Driver (Type 2) B) Net Protocol-pure Java Driver (Type 3) C) Native Protocol-pure Java Driver (Type 4) D) JDBC-ODBC Bridge Driver (Type 1) Guess the correct option in the comments!

👨‍💻 JDBC Quiz Which of the following is used to limit the number of rows returned ? A. getMaxrows(int i) B. getMinRows(int i) C. setMaxRows(int i) ⬇️ Guess the correct option in the comments!

Q. What are daemon threads in java ❓ In Java, a daemon thread is a thread that runs in the background, performing tasks that are not critical to the program's execution. Daemon threads are typically used for tasks such as: ========================== • Garbage collection • Memory management • Monitoring system resources • Providing services to other threads Characteristics of daemon threads ========================== 🔹 Run in the background Daemon threads run in the background, without blocking the main program's execution. 🔹 Low priority: Daemon threads have a lower priority than normal threads. 🔹 * *Don't prevent JVM termination**: If all non-daemon threads finish execution, the JVM can terminate even if daemon threads are still running. 🔹 Inherit daemon status: Threads created by a daemon thread are also daemon threads. ========================== To create a daemon thread in Java, you can use the ========================== ** setDaemon(true)** method on a Thread object before starting it: Thread thread = new Thread(() -> { // Perform background task }); thread.setDaemon(true); thread.start(); ` **Note that** daemon threnot suitable for tasks tasks** that require precise timing or critical execution, as they may be interrupted or terminated by the JVM at any time.

Java Keywords ========================= Keywords in Java are also known as reserved words. These are thepredefined words therefore they can’t be used as a variable name. If we will use keywords as a variable name, the result will be a compile-time error. The list of all the Java Keywords is given below.

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