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+import java.util.Scanner;%0A%0Apublic class PP4%0A%7B%0A%09public static void main( String%5B%5D args )%0A%09%7B%0A%09%09/* Local Variables */%0A%09%09String filename;%0A%09%09Scanner in = new Scanner( System.in );%0A%09%09DataParameters dataParams;%0A%09%09PP4Processor processor;%0A%09%09%0A%09%09if ( args.length %3E 0 )%0A%09%09%09filename = args%5B0%5D;%0A%09%09else%0A%09%09%7B%0A%09%09%09System.out.println( %22Enter Filename: %22 );%0A%09%09%09filename = in.nextLine();%0A%09%09%7D%0A%09%09%0A%09%09processor = new PP4Processor( filename );%0A%09%7D%0A%7D%0A

Create PP4.java