Which of the following can replace line 2 to make the code compile?
❌ A. import static java.util.Collections; ✅ B. import static java.util.Collections.*; ❌ C. import static java.util.Collections.sort(ArrayList<String>); ❌ D. static import java.util.Collections; ❌ E. static import java.util.Collections.*; ❌ F. static import java.util.Collections.sort(ArrayList<String>);
Explanation: The two valid ways to do this are import static java.util.Collections.*; and import static java.util.Collections.sort;. Option A is incorrect because you can do a static import only on static members. Classes such as Collections require a regular import. Option C is nonsense as method parameters have no business in an import. Options D, E, and F try to trick you into reversing the syntax of import static.
Which of the following can replace line 2 to make the code compile?
❌ A. import static java.util.Collections; ✅ B. import static java.util.Collections.*; ❌ C. import static java.util.Collections.sort(ArrayList<String>); ❌ D. static import java.util.Collections; ❌ E. static import java.util.Collections.*; ❌ F. static import java.util.Collections.sort(ArrayList<String>);
Explanation: The two valid ways to do this are import static java.util.Collections.*; and import static java.util.Collections.sort;. Option A is incorrect because you can do a static import only on static members. Classes such as Collections require a regular import. Option C is nonsense as method parameters have no business in an import. Options D, E, and F try to trick you into reversing the syntax of import static.
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“To the extent it is used I fear it’s often for illicit finance. It’s an extremely inefficient way of conducting transactions, and the amount of energy that’s consumed in processing those transactions is staggering,” the former Fed chairwoman said. Yellen’s comments have been cited as a reason for bitcoin’s recent losses. However, Yellen’s assessment of bitcoin as a inefficient medium of exchange is an important point and one that has already been raised in the past by bitcoin bulls. Using a volatile asset in exchange for goods and services makes little sense if the asset can tumble 10% in a day, or surge 80% over the course of a two months as bitcoin has done in 2021, critics argue. To put a finer point on it, over the past 12 months bitcoin has registered 8 corrections, defined as a decline from a recent peak of at least 10% but not more than 20%, and two bear markets, which are defined as falls of 20% or more, according to Dow Jones Market Data.
