printpublicmembers.java

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// Introduced in Chapter 17
import java.io.*;
import java.util.Scanner;

/** Print all lines containing the substring "public". */
public class PrintPublicMembers {

  /** Run on the file specified as args[0]. */
  public static void main(String[] args) throws IOException {
    File file = new File(args[0]);
    Scanner in = new Scanner(file);
    while (in.hasNextLine()) {
      String line = in.nextLine();
      if (line.contains("public")) {
        System.out.println(line);
      }
    }
  }
  
}