public void paint(Graphics g) {
g.setColor(new Color(255,200,200));
g.fillRect(0,0,this.getWidth(),this.getHeight());
g.setColor(Color.black);
g.drawString("background",100,100);
}
g.setColor(new Color(255,200,200));
g.fillRect(0,0,this.getWidth(),this.getHeight());
g.setColor(Color.black);
g.drawString("background",100,100);
}
public void paint(Graphics g) {
String s="backgound";
java.awt.FontMetrics fm=g.getFontMetrics();
int height=fm.getHeight();
int width=fm.stringWidth(s);
g.setColor(new Color(255,200,200));
g.fillRect(100,100-height,width,height);
g.setColor(Color.black);
g.drawString(s,100,100);
}
//:HelloWorldApplet.javaimport java.applet.Applet;
import java.awt.Graphics;
import java.awt.Color;public class HelloWorldApplet extends Applet {
public void paint(Graphics g) {
g.setColor(new Color(255,200,200));
String temp="中国我爱你";
//String temp="I love china";
char[] dst=new char[temp.length()];
temp.getChars(0,temp.length()-1,dst,0);
int x,y;
x=100;
y=100;
//需要获得字符串的长度、高度来画底色
g.fillRect(x,y,g.getFontMetrics().getLeading()+g.getFontMetrics().charsWidth(dst,0,dst.length),g.getFontMetrics().getHeight());
g.setColor(Color.black);
g.drawString(temp,x,y+g.getFontMetrics().getAscent());
}
}
//Applet-使用g.drawString写有背景的文字.txt
//:HelloWorldApplet.javaimport java.applet.Applet;
import java.awt.Graphics;
import java.awt.Color;public class HelloWorldApplet extends Applet {
public void paint(Graphics g) {
g.setColor(new Color(255,200,200));
//String temp="中国我爱你";
String temp="I love china";
int x,y;
x=100;
y=100;
//获得宽、高画底色
g.fillRect(x,y,g.getFontMetrics().stringWidth(temp),g.getFontMetrics().getHeight());
g.setColor(Color.black);
//正常显示字符串,刚好在底色框内
g.drawString(temp,x,y+g.getFontMetrics().getAscent());
}
}