package javathreads.examples.ch08.example4;
import java.util.*;
import javax.swing.*;
import javax.swing.table.*;
public class CharCounter {
public HashMap correctChars = new HashMap();
public HashMap incorrectChars = new HashMap();
private AbstractTableModel atm;
public void correctChar(int c) {
synchronized(correctChars) {
Integer key = new Integer(c);
Integer num = (Integer) correctChars.get(key);
if (num == null)
correctChars.put(key, new Integer(1));
else correctChars.put(key, new Integer(num.intValue() + 1));
if (atm != null)
atm.fireTableDataChanged();
}
}
public int getCorrectNum(int c) {
synchronized(correctChars) {
Integer key = new Integer(c);
Integer num = (Integer) correctChars.get(key);
if (num == null)
return 0;
return num.intValue();
}
}
public void incorrectChar(int c) {
synchronized(incorrectChars) {
Integer key = new Integer(c);
Integer num = (Integer) incorrectChars.get(key);
if (num == null)
incorrectChars.put(key, new Integer(-1));
else incorrectChars.put(key, new Integer(num.intValue() - 1));
if (atm != null)
atm.fireTableDataChanged();
}
}
public int getIncorrectNum(int c) {
synchronized(incorrectChars) {
Integer key = new Integer(c);
Integer num = (Integer) incorrectChars.get(key);
if (num == null)
return 0;
return num.intValue();
}
}
public void addModel(AbstractTableModel atm) {
this.atm = atm;
}
}
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