❌ A. The first compiler error is on line A ❌ B. The first compiler error is on line B ❌ C. The first compiler error is on line C ❌ D. The first compiler error is on line D ✅ E. The code compiles successfully
Explanation: Lambdas are only allowed to reference effectively final variables. You can tell the variable j is effectively final because adding a final keyword before it wouldn’t introduce a compile error. Each time the else statement is executed, the variable is redeclared and goes out of scope. Therefore, it is not re-assigned. Similarly, length is effectively final. There are no compile errors, and option E is correct.
❌ A. The first compiler error is on line A ❌ B. The first compiler error is on line B ❌ C. The first compiler error is on line C ❌ D. The first compiler error is on line D ✅ E. The code compiles successfully
Explanation: Lambdas are only allowed to reference effectively final variables. You can tell the variable j is effectively final because adding a final keyword before it wouldn’t introduce a compile error. Each time the else statement is executed, the variable is redeclared and goes out of scope. Therefore, it is not re-assigned. Similarly, length is effectively final. There are no compile errors, and option E is correct.
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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.”
