✅ A. Initializing Helper Ready Cleaning ❌ B. Initializing Helper Ready HelperService: Cleaning Cleaning ❌ C. Helper Ready Initializing Helper Ready Cleaning ❌ D. Compilation Error: Missing @Component annotation on MyService ❌ E. None of the above
Explanation: 1. Configuration and Bean Lifecycle: • AppConfig is annotated with Configuration, marking it as the configuration class. • Bean(initMethod = "init", destroyMethod = "cleanup") defines the lifecycle methods for MyService. 2. Dependency Injection: • MyService has a Autowired field, injecting the HelperService bean. Spring automatically resolves the dependency. 3. Lifecycle Methods: • The init method of MyService is called after the bean is instantiated. • The cleanup method is called when the context is closed. 4. Output Order: • Initializing is printed when init() is invoked. • The process() method prints the message from HelperService: Helper Ready. • Cleaning is printed during context closure.
✅ A. Initializing Helper Ready Cleaning ❌ B. Initializing Helper Ready HelperService: Cleaning Cleaning ❌ C. Helper Ready Initializing Helper Ready Cleaning ❌ D. Compilation Error: Missing @Component annotation on MyService ❌ E. None of the above
Explanation: 1. Configuration and Bean Lifecycle: • AppConfig is annotated with Configuration, marking it as the configuration class. • Bean(initMethod = "init", destroyMethod = "cleanup") defines the lifecycle methods for MyService. 2. Dependency Injection: • MyService has a Autowired field, injecting the HelperService bean. Spring automatically resolves the dependency. 3. Lifecycle Methods: • The init method of MyService is called after the bean is instantiated. • The cleanup method is called when the context is closed. 4. Output Order: • Initializing is printed when init() is invoked. • The process() method prints the message from HelperService: Helper Ready. • Cleaning is printed during context closure.
Correct answer: A
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Like a stock, you can buy and hold Bitcoin as an investment. You can even now do so in special retirement accounts called Bitcoin IRAs. No matter where you choose to hold your Bitcoin, people’s philosophies on how to invest it vary: Some buy and hold long term, some buy and aim to sell after a price rally, and others bet on its price decreasing. Bitcoin’s price over time has experienced big price swings, going as low as $5,165 and as high as $28,990 in 2020 alone. “I think in some places, people might be using Bitcoin to pay for things, but the truth is that it’s an asset that looks like it’s going to be increasing in value relatively quickly for some time,” Marquez says. “So why would you sell something that’s going to be worth so much more next year than it is today? The majority of people that hold it are long-term investors.”
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