Java The Complete Reference, Seventh Edition

694 Part II: The Java Library

// Advance to next line.

void nextLine(String s, Graphics g) {

FontMetrics fm = g.getFontMetrics();

curY += fm.getHeight(); // advance to next line

curX = 0;

g.drawString(s, curX, curY);

curX = fm.stringWidth(s); // advance to end of line

}

// Display on same line.

void sameLine(String s, Graphics g) {

FontMetrics fm = g.getFontMetrics();

g.drawString(s, curX, curY);

curX += fm.stringWidth(s); // advance to end of line

}

}

Sample output from this program is shown here:

Centering Text

Here is an example that centers text, left to right, top to bottom, in a window. It obtains the

ascent, descent, and width of the string and computes the position at which it must be displayed

to be centered.

// Center text.

import java.applet.*;

import java.awt.*;

/*

<applet code="CenterText" width=200 height=100>

</applet>

*/

public class CenterText extends Applet {

final Font f = new Font("SansSerif", Font.BOLD, 18);

public void paint(Graphics g) {

Dimension d = this.getSize();

g.setColor(Color.white);

g.fillRect(0, 0, d.width,d.height);

g.setColor(Color.black);