swt Text 숫자만 입력

Text txt_num = new Text(composite,SWT.BORDER); final RowData rd_txt_num = new RowData(); rd_txt_num.width = 34; txt_num.setLayoutData(rd_txt_num); txt_num.setTextLimit(4); txt_num.addVerifyListener(new VerifyListener(){ @Override public void verifyText(VerifyEvent e) {//숫자만 입력받는다. e.doit = e.text.matches("[0-9]*"); }});