Solve this multiple-choice question and choose the correct option.

Introduction / Context:This question evaluates knowledge of Java import statements and compilation requirements for using java.io classes. Concept / Approach: In Java, include is invalid (C/C++ feature). If classes are referenced with full package names (java.io.PrintWriter), no import is necessary. But the constructor new java.io.PrintWriter() is invalid without arguments — it requires a Writer or OutputStream. Step-by-Step Reasoning: Given options, the most reasonable fix is using import java.io.*; so that PrintWriter and OutputStreamWriter are available without full qualification. Final Answer:import java.io.*;

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Java — What line of code should replace the missing statement to compile this program? public class foo { public static void main(String[]args)throws Exception { java.io.PrintWriter out = new java.io.PrintWriter(); new java.io.OutputStreamWriter(System.out,true); out.println("Hello"); } }

Difficulty: Medium

No statement required.
import java.io.*;
include java.io.*;
import java.io.PrintWriter;

Correct Answer: import java.io.*;

Explanation:

Introduction / Context:This question evaluates knowledge of Java import statements and compilation requirements for using java.io classes.

Concept / Approach:

In Java, include is invalid (C/C++ feature).
If classes are referenced with full package names (java.io.PrintWriter), no import is necessary.
But the constructor new java.io.PrintWriter() is invalid without arguments — it requires a Writer or OutputStream.

Step-by-Step Reasoning:

Given options, the most reasonable fix is using import java.io.*; so that PrintWriter and OutputStreamWriter are available without full qualification.

Java — What line of code should replace the missing statement to compile this program? public class foo { public static void main(String[]args)throws Exception { java.io.PrintWriter out = new java.io.PrintWriter(); new java.io.OutputStreamWriter(System.out,true); out.println("Hello"); } }

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