用JAVA编译一个计算器该怎么写啊?答:TextField t = new TextField("",30);String textValue = t.getText();private String[] name1 = {"Backsapce","CE","C"};private Button[] button1 = new Button[name1.length];private String[] name2 = {"7","8","9","/","sqrt","4","5","6","*","%","1","2",...