WordInputJTextPane

public class WordInputJTextPane extends JTextPane{
private static final long serialVersionUID = 1L;
private String rightWordEn ="";
public static final Color RIGHT_COLOR = Color.BLUE;
public static final Color ERROR_COLOR = Color.RED;
private String[] wordBuffer;
private WordKeyListener wordKeyListener = new WordKeyListener();
public WordInputJTextPane() {
this.addKeyListener(wordKeyListener);
}
public String handlerResult(){
if(this.getText()==null || this.getText().length()==0){
return "2";
}else if(this.getText().trim().equalsIgnoreCase(rightWordEn)){
this.setForeground(RIGHT_COLOR);
return "0";
}else if(!this.getText().trim().equalsIgnoreCase(rightWordEn)){
this.setForeground(ERROR_COLOR);
return "1";
}else {
return "2";
}
}

public void setRightWordEn(String rightWordEn) {
this.rightWordEn = rightWordEn;
}
class WordKeyListener extends KeyAdapter{
public void keyReleased(KeyEvent e) {
handlerResult();
}
}
public String[] getWordBuffer() {
return wordBuffer;
}
public void setWordBuffer(String[] wordBuffer) {
for(int i = 0;i<wordBuffer.length;i++){
if(wordBuffer[i] == null){
wordBuffer[i] = "";
}
}
this.wordBuffer = wordBuffer;
}

}