Name: rk38400 Date: 04/14/98


Run the enclosed program against Swing 1.0
and get exception below:
java.lang.ArithmeticException: / by zero
at com.sun.java.swing.text.PlainView.nextTabStop(PlainView.java:433)
at com.sun.java.swing.text.Utilities.getTabbedTextWidth(Utilities.java:104)
at com.sun.java.swing.text.FieldView.getPreferredSpan(FieldView.java:173)
at com.sun.java.swing.text.FieldView.updateVisibilityModel(FieldView.java:130)
at com.sun.java.swing.text.FieldView.insertUpdate(FieldView.java:238)
at com.sun.java.swing.text.DefaultTextUI$RootView.insertUpdate(DefaultTextUI.java:834)
at com.sun.java.swing.text.DefaultTextUI$UpdateHandler.insertUpdate(DefaultTextUI.java:1050)
at com.sun.java.swing.text.AbstractDocument.fireInsertUpdate(AbstractDocument.java:137)
at com.sun.java.swing.text.AbstractDocument.insertString(AbstractDocument.java:415)
at com.sun.java.swing.text.JTextComponent.setText(JTextComponent.java:1089)
at TestSetText.<init>(TestSetText.java:19)
at TestSetText.main(TestSetText.java:24)

Test program: (NOTE: The first line of the source code contains tabs)

// Tabs here Tab1 Tab2 ...
import java.awt.*;
import java.io.*;
import com.sun.java.swing.*;
public class TestSetText extends JPanel {
    private JTextField text;
    TestSetText() {
File file = new File("TestSetText.java");
String initText = "";
try {
int length = (int)file.length(); // throws SecurityException for unreadable
FileInputStream fs = new FileInputStream(file); // throws FileNotFoundException
byte [] content = new byte[length];
int bytesRead = fs.read(content); // throws IOException
initText = new String(content, 0, bytesRead);
} catch ( Exception ex ) {
}
text = new JTextField(30);
text.setText(initText.substring(0,30));
add(text);
    }
    public static void main(String args[]) {
Frame f = new Frame();
f.add(new TestSetText());
f.pack();
f.show();
    }
}
(Review ID: 27175)
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