Given the code fragment: 1. class App { 2. 3. } Which two code fragments are valid at line 2?

Question

Options

• Afor (int count = 0; count < 5; count++) { System.out.print(count); }
• Bpackage p1;
• Cimport java.util.*; public void display() { List<Integer> nums = new ArrayList<>(); }
• Dprivate int num;

• A
  5% (1)
• B
  95% (20)

Explanation

There appears to be an error in the listed correct answer - B (package p1;) is actually invalid at line 2, because package declarations must appear as the very first statement in a .java file, before any class declaration. Placing it inside a class body causes a compile error.

The genuinely valid fragment at line 2 (inside the class body) is D: private int num; - a field declaration, which is perfectly legal directly within a class body.

Why the other options fail:

• A - A bare for loop is a statement, and statements can only live inside methods, constructors, or initializer blocks - not directly in a class body.
• C - import java.util.*; is a file-level directive; it cannot appear inside a class body. The method declaration following it would be fine on its own, but the combined fragment is invalid.
• B - As noted, package declarations belong at the top of the source file, before any class declaration, not inside one.

Memory tip: Think of a Java source file as three zones stacked top-to-bottom - package → imports → class body. Each zone is strictly ordered; you cannot "reach back up" from inside a class to place package or import statements. Only members (fields, methods, constructors, nested types) live inside the braces.

Note for exam takers: If your source lists B as correct, flag it - this question likely contains an error. The correct single valid answer here is D.

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