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- package bokreg;
- import java.io.*;
- /**
- *
- * @author Vitor.Evertsson
- */
- public class data {
- public String totrad = "";
- //metod som läser data från tetfilen data.txt
- public String dataut(){
- return totrad;
- }
- //metod som läser skriver från tetfilen data.txt
- public String datawrite(String in){
- try{
- RandomAccessFile utfil = new RandomAccessFile("data.txt", "rw");
- utfil.seek(utfil.length());
- utfil.write(in.getBytes());
- utfil.close();
- }
- catch(IOException e1){
- System.out.print("Error e1");
- }
- return "Data lagrad";
- }
- // metod som raderar data ur filen data.txt
- public String deletedata(){
- try{
- PrintWriter utfil = new PrintWriter
- (new BufferedWriter
- (new FileWriter("data.txt")),true);
- utfil.println("");
- utfil.close();
- }
- catch(IOException e1){
- System.out.print("Error e1");
- }
- return "Data raderad";
- }
- }
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