Which code can be inserted to have the code print 2?
public class BirdSeed { private int numberBags; boolean call; public BirdSeed() { // LINE 1 call = false; // LINE 2 } public BirdSeed(int numberBags) { this.numberBags = numberBags; } public static void main(String[] args) { BirdSeed seed = new BirdSeed(); System.out.println(seed.numberBags); } }
❌ A. Replace line 1 with BirdSeed(2); ❌ B. Replace line 2 with BirdSeed(2); ❌ C. Replace line 1 with new BirdSeed(2); ❌ D. Replace line 2 with new BirdSeed(2); ✅ E. Replace line 1 with this(2); ❌ F. Replace line 2 with this(2);
Explanation: Options A and B will not compile because constructors cannot be called without new. Options C and D will compile but will create a new object rather than setting the fields in this one. Option F will not compile because this() must be the first line of a constructor. Option E is correct.
Which code can be inserted to have the code print 2?
public class BirdSeed { private int numberBags; boolean call; public BirdSeed() { // LINE 1 call = false; // LINE 2 } public BirdSeed(int numberBags) { this.numberBags = numberBags; } public static void main(String[] args) { BirdSeed seed = new BirdSeed(); System.out.println(seed.numberBags); } }
❌ A. Replace line 1 with BirdSeed(2); ❌ B. Replace line 2 with BirdSeed(2); ❌ C. Replace line 1 with new BirdSeed(2); ❌ D. Replace line 2 with new BirdSeed(2); ✅ E. Replace line 1 with this(2); ❌ F. Replace line 2 with this(2);
Explanation: Options A and B will not compile because constructors cannot be called without new. Options C and D will compile but will create a new object rather than setting the fields in this one. Option F will not compile because this() must be the first line of a constructor. Option E is correct.
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The cloud-based messaging platform is also adding Anonymous Group Admins feature. As per Telegram, this feature is being introduced for safer protests. As per the Telegram blog post, users can “Toggle Remain Anonymous in Admin rights to enable Batman mode. The anonymized admin will be hidden in the list of group members, and their messages in the chat will be signed with the group name, similar to channel posts.”
Should I buy bitcoin?
“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.
