File Storage

Internal Storage:



package file.com.kumar;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileWriter;
import java.io.IOException;
import java.util.Scanner;


import android.app.Activity;
import android.os.Bundle;
import android.os.Environment;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;


public class FileActivity extends Activity {
Button write,read;
EditText edit;
TextView tv;
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        write=(Button)findViewById(R.id.Button01);
        read=(Button)findViewById(R.id.Button02);
        edit=(EditText)findViewById(R.id.EditText01);
        tv=(TextView)findViewById(R.id.TextView01);
        
        
        write.setOnClickListener(new OnClickListener() {

@Override
public void onClick(View v) {
writetofile(edit.getText().toString());

}
});    
        read.setOnClickListener(new OnClickListener() {

@Override
public void onClick(View v) {
readtofile(tv);

}
}); 
      }
    public void writetofile(String write){
    String path=Environment.getDataDirectory().getAbsolutePath();
    path=path +"/data/file.com.kumar/newfile";
    File f=new File(path);
    if(!f.exists()){
    f.mkdir();
    }
    path=path +"/filetext.txt";
    File myfile=new File(path);
    FileWriter writer;
try {
writer = new FileWriter(myfile);
writer.write(write);
writer.flush();
writer.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
    }
    
    public void readtofile(TextView tv){
    String path=Environment.getDataDirectory().getAbsolutePath();
    path=path +"/data/file.com.kumar/newfile/filetext.txt";
    StringBuilder text = new StringBuilder();
   String NL = System.getProperty("line.separator");
   Scanner scanner = null;
try {
scanner = new Scanner(new FileInputStream(new File(path)), "UTF-8");
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
   try {
     while (scanner.hasNextLine()){
       text.append(scanner.nextLine() + NL);
     }
   }
   finally{
     scanner.close();
   }
   

    

   tv.setText(text.toString());
}

}

   
File storage path:

    Output: