What is the output of the following code?

1: package rope;
2: public class Rope {
3: public static int LENGTH = 5;
4: static {
5: LENGTH = 10;
6: }
7: public static void swing() {
8: System.out.print("swing ");
9: }
10: }

1: import rope.*;
2: import static rope.Rope.*;
3: public class Chimp {
4: public static void main(String[] args) {
5: Rope.swing();
6: new Rope().swing();
7: System.out.println(LENGTH);
8: }
9: }

❌ A. swing swing 5
✅ B. swing swing 10
❌ C. Compiler error on line 2 of Chimp.
❌ D. Compiler error on line 5 of Chimp.
❌ E. Compiler error on line 6 of Chimp.
❌ F. Compiler error on line 7 of Chimp.

Explanation:
Rope runs line 3, setting LENGTH to 5, then immediately after runs the static initializer, which sets it to 10. Line 5 calls the static method normally and prints swing. Line 6 also calls the static method. Java allows calling a static method through an instance variable. Line 7 uses the static import on line 2 to reference LENGTH.