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Practical 13: Refine the student manager program to manipulate the student information from files by using the DataInputStream and DataOutputStream. Assume suitable data
Program : import java.io.*; public class practical13 { public static void main(String args[]) throws IOException { DataInputStream dataIS = new DataInputStream(new FileInputStream("stdinfo.txt")); DataOutputStream dataOS = new DataOutputStream(new FileOutputStream("newstdinfo.txt")); // manipulate the student information from files String str; while ((str = dataIS.readLine()) != null) { String upper = str.toUpperCase(); System.out.println(upper); dataOS.writeBytes(upper + " ,");...

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