初学java 编译时出错

[issmqe]

出错信息：


hello.java:10:'{'expected
class ApplicationFram extends Fram implents ActionLister
hello.java:44:'}' expeted ^
}
^
2 errors











源程序：





import java.awt. *;
import java.awt.event. *;
public class Hello
{
public static void main(String args[]);
{
ApplicationFram AF=new ApplicationFram();
}
}
class ApplicationFram extends Fram implents ActionLister
{
Label prompt;
TextField text1,text2;
Button btn;
int a=0,b=0;

ApplicationFram()
{
super("我的窗口");
promt=new Label("请输入两个整数：");
text1=new TextField(4);
text2=new TextField(4);
btn=new Button("计算");
setLayout(new FlowLayout());
add(promt);
add(text1);
add(text2);
add(btn);
btn.addactionListener(this);
show();
}

public void actionPerformed(ActionEvent e)
{
a=Integer.parseInt(tex1.getText());
b=Integer.parseInt(tex2.getText());
}

public void paint(Graphics g)
{
g.drawString("运算结果："+a+"*"+b+"="+a*b,20,80);
}

}









郁闷一下午了

[shadao]

Fram
no no no
is Frame

[johnsoncr]

Fram implents --> Frame implements

[issmqe]

刚又看了一下，除了ls两位说的，还有好多
汗 不好意思
真不该问这样的问题

[issmqe]

谢谢两位

[chenggm]

改了下，可以运行了

public class Hello extends Frame {
	Label prompt,label1;

	TextField text1, text2,text3;

	Button btn;
	Button quit;
	int a = 0;

	int b = 0;

	public Hello() {
		try {
			init();
		} catch (Exception ex) {
			ex.printStackTrace();
		}
	}
	public static void main(String[] args){
		Hello hello = new Hello();
	}
	public void init() throws Exception {
		prompt = new Label("请输入两个整数：");
		label1 = new Label("=");
		text1 = new TextField(4);
		text2 = new TextField(4);
		text3 = new TextField(4);
		btn = new Button("计算");
		quit = new Button("退出");
		setLayout(new FlowLayout());
		add(prompt);
		add(text1);
		add(text2);
		add(label1);
		add(text3);
		add(btn);
		add(quit);
		btn.addActionListener(new Btn_actionAdapter(this));
		quit.addActionListener(new Quit_actionAdapter(this));
		this.setSize(500, 500);
		this.setVisible(true);

	}

	public void quit_actionPerformed(ActionEvent e) {
		System.exit(0); 
	}
	public void bnt_actionPerformed(ActionEvent e) {
		a = Integer.parseInt(text1.getText());
		b = Integer.parseInt(text2.getText());
		int result = a + b;
		text3.setText(String.valueOf(result));
	}



	class Btn_actionAdapter implements ActionListener {
		private Hello adaptee;

		Btn_actionAdapter(Hello adaptee) {
			this.adaptee = adaptee;
		}

		public void actionPerformed(ActionEvent e) {
			adaptee.bnt_actionPerformed(e);
		}
	}
	
	class Quit_actionAdapter implements ActionListener {
		private Hello adaptee;

		Quit_actionAdapter(Hello adaptee) {
			this.adaptee = adaptee;
		}

		public void actionPerformed(ActionEvent e) {
			adaptee.quit_actionPerformed(e);
		}
	}
}