import javafx.scene.control.*;
import java.io.*;

public class MyHeader {
	
	TextArea editor=null;
	String filename="";
	
	public MyHeader(TextArea editor, String filename) {
		this.editor=editor;
		this.filename=filename;		
	}
	
	short var_short=0;
	int var_int=0;
	double var_double=0.0;
	
	public void writeDatas() {
		var_short=123;
		var_int = 42;
		var_double = 123.4567;
		editor.setText("xxxxxx");
		try {
			FileOutputStream fout = new FileOutputStream(filename);
			DataOutputStream dout = new DataOutputStream(fout);
			dout.writeShort(var_short);
			editor.appendText("var_short: "+var_short+"\n");
			
			dout.writeInt(var_int);
			editor.appendText("var_int: "+var_int+"\n");
			
			dout.writeDouble(var_double);
			editor.appendText("var_double: "+var_double+"\n");
			editor.appendText("\n\n");
			
			dout.close();
			fout.close();
		}
		catch(IOException e) {
			System.out.println("error in write");
		}
		
	}
	
	public void readDatas() {
		var_short=0;
		var_int = 0;
		var_double = 0;
		editor.appendText("Lesen\n");
		try {
			FileInputStream fin = new FileInputStream(filename);
			DataInputStream din = new DataInputStream(fin);
			var_short=din.readShort();
			editor.appendText("var_short: "+var_short+"\n");
			
			var_int=din.readInt();
			editor.appendText("var_int: "+var_int+"\n");
			
			var_double=din.readDouble();
			editor.appendText("var_double: "+var_double+"\n");
			editor.appendText("\n\n");
			
			din.close();
			fin.close();
		}
		catch(IOException e) {
			System.out.println("error in read");

		}
		
	}

}