package?編譯原理實驗;

import?javax.swing.*;
import?java.awt.*;
import?java.awt.event.*;
import?java.util.Stack;
import?java.util.StringTokenizer;

public?class?Testh?extends?Jframe?implements?ActionListener?{
	
	private?static?final?long?serialVersionUID?=?1L;
	private?JButton?beginButton?=?new?JButton（“運(yùn)行“）;
	private?JButton?cleanButton?=?new?JButton（“清空“）;
	private?JLabel?inLabel?=?new?JLabel（“輸入代碼“）;
	private?JLabel?beginButton6?=?new?JLabel（“分析結(jié)果“）;
	Font?fon?=?new?Font（“Dialog“?Font.PLAIN?18）;
	private?static?TextArea?inTextArea?=?new?TextArea（17?30）;
	private?static?TextArea?outTextArea?=?new?TextArea（17?30）;
	private?JPanel?pane?=?new?JPanel（）;
	private?static?String?s1?=?new?String（）;
	static?String?input=““;

	//?布局管理器
	void?buildConstraints（GridBagConstraints?gbc?int?gx?int?gy?int?gw
			int?gh?int?wx?int?wy）?{
		gbc.gridx?=?gx;
		gbc.gridy?=?gy;
		gbc.gridwidth?=?gw;
		gbc.gridheight?=?gh;
		gbc.weightx?=?wx;
		gbc.weighty?=?wy;
	}

	//?布局鍵面
	private?void?setMyPane（）?{
		GridBagLayout?gridbag?=?new?GridBagLayout（）;
		GridBagConstraints?constraints?=?new?GridBagConstraints（）;
		pane.setLayout（gridbag）;
		buildConstraints（constraints?0?0?1?1?25?5）;
		constraints.fill?=?GridBagConstraints.VERTICAL;
		gridbag.setConstraints（inLabel?constraints）;
		pane.add（inLabel）;
		buildConstraints（constraints?1?0?1?1?25?0）;
		gridbag.setConstraints（beginButton?constraints）;
		pane.add（beginButton）;
		buildConstraints（constraints?0?1?2?3?25?90）;
		gridbag.setConstraints（inTextArea?constraints）;
		inTextArea.setFont（fon）;
		pane.add（inTextArea）;
		buildConstraints（constraints?2?1?2?3?0?0）;
		gridbag.setConstraints（outTextArea?constraints）;
		outTextArea.setFont（fon）;
		pane.add（outTextArea）;
		buildConstraints（constraints?2?0?1?1?25?0）;
		gridbag.setConstraints（cleanButton?constraints）;
		pane.add（cleanButton）;
		buildConstraints（constraints?3?0?1?1?25?0）;
		gridbag.setConstraints（beginButton6?constraints）;
		pane.add（beginButton6）;
		setLocation（200?80）;
		setContentPane（pane）;
	}

	//?添加事件監(jiān)聽器
	private?void?initListener（）?{
		ActListener?actListener?=?new?ActListener（）;
		beginButton.addActionListener（actListener）;
		cleanButton.addActionListener（actListener）;
	}

	//?構(gòu)建事件監(jiān)聽器
	class?ActListener?implements?ActionListener?{
		public?void?actionPerformed（ActionEvent?e）?{
			if?（e.getSource（）?==?beginButton）?{
				porRun（）;
			}
			if?（e.getSource（）?==?cleanButton）?{
				inTextArea.setText（““）;
				outTextArea.setText（““）;
			}
		}
	}

	private?void?porRun（）?//?分析過程
	{
		String?inText?=?inTextArea.getText（）;
		int?j?=?1;
		StringTokenizer?str1?=?new?StringTokenizer（inText
				“?\n\t\r;+=-\“\‘）（}{][<>!“?true）;
		int?n?=?str1.countTokens（）;
		String[]?intext?=?new?String[str1.countTokens（）];
		for?（int?a?=?0;?a?			intext[a]?=?str1.nextToken（）;
		}
		outTextArea.setSize（1000?1000）;
		
		outTextArea.appen