java - graphics drawxxx method does not work -


i new graphics. got code open source.it should paint string "heeelo" on jframe,but not.can explain why not working , principle of paint method?why should edit jframe method not called main?

import java.awt.color; import java.awt.dimension; import java.awt.graphics; import java.awt.event.keyadapter; import javax.swing.jframe;  public class view extends jframe{      public view(){         this.setsize(new dimension(250, 250));         this.setvisible(true);         this.setdefaultcloseoperation(jframe.exit_on_close);      }     public void paint(graphics g){        g.drawstring("heello", 10, 10);     }     public static void main(string []args){         new view();     } }

get rid of tutorial, not way painting.

first basic problems should invoke super.paint(...) when overriding method. secondly text won't show because being painted under title bar. need increase y offset:

super.paint(g); g.drawstring("heello", 10, 40);

and principle of paint method

read section swing tutorial on custom painting proper way this. override paintcomponent() method of jpanel , add panel frame. should not custom painting on frame directly.


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