file UTF 8 Javac in java?

import java.awt.*;
import java.applet.*;
public class AppletTest extends Applet{

    String str;
    int x,y;
    public void init(){
        x=y=40;
        str="HelloText";
    }
    public void paint (Graphics g){
    Font f = new Font("Segoe UI",Font.BOLD,25);
        g.setFont(f);
        g.setColor(Color.blue);
        g.drawString(str,x,y);
    }
}