mainframe.java

this is lexical tokens of compiler operate on java

/*
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 * and open the template in the editor.
 */
package compilerphase1;

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

/**
 *
 * @author group
 */
public class mainframe extends JFrame implements ActionListener {
    //*************global decleration***********************
    JTextArea commands = new JTextArea("");
    JButton compile = new JButton("Compile");
    JButton clear = new JButton("Clear");
    JButton exit = new JButton("E x i t");
    JScrollPane scroll_in_text = new JScrollPane(commands);
    JTextArea output = new JTextArea("  Tokens       Type       \n================================\n");
    JScrollPane scroll_in_output = new JScrollPane(output);
    Check check;
    StringBuffer str;
    java.awt.List list1;
    String sourceString;
    JLabel inp = new JLabel("Input The Code Here :");
    JLabel lout = new JLabel("output :");
    JLabel tout = new JLabel("Symbol Table :");

    //******************************************************
    public mainframe() {
        super("Lexical_Analysis");
        setSize(350, 440);
        getContentPane().setLayout(null);
        setResizable(false);
        setLocation(220, 100);
        tout.setVisible(false);
        scroll_in_output.setVisible(false);
        //*********labels*********************
        inp.setBounds(40, 10, 200, 20);
        inp.setFont(new java.awt.Font("Serif", 3, 16));
        inp.setForeground(Color.blue);
        getContentPane().add(inp);
        inp.setVisible(true);

        lout.setBounds(40, 250, 100, 20);


        tout.setBounds(40, 205, 100, 20);
        tout.setFont(new java.awt.Font("Serif", 3, 16));
        tout.setForeground(Color.blue);
        getContentPane().add(tout);
        tout.setVisible(true);
        //*****************to text area 1***********************

        scroll_in_text.setBounds(40, 40, 260, 100);
        commands.setFont(new java.awt.Font("Serif", 1, 16));
        commands.setForeground(Color.red);
        getContentPane().add(scroll_in_text);
        scroll_in_text.setVisible(true);

        //*****************to text area 2***********************

        scroll_in_output.setBounds(40, 235, 260, 150);
        output.setFont(new java.awt.Font("Serif", 1, 14));
        output.setForeground(Color.black);
        //output.setBackground(new Color(150,200,170));
        getContentPane().add(scroll_in_output);
        scroll_in_output.setVisible(true);


        //*********to button********************

        compile.setBounds(40, 145, 130, 23);
        getContentPane().add(compile);
        compile.setVisible(true);
        compile.addActionListener(this);

        clear.setBounds(170, 145, 130, 23);
        getContentPane().add(clear);
        clear.setVisible(true);
        clear.addActionListener(this);

        exit.setBounds(170, 168, 130, 23);
        getContentPane().add(exit);
        exit.setForeground(Color.red);
        exit.setVisible(true);
        exit.addActionListener(this);

        check = new Check();
        //*******************list**************************
        list1 = new java.awt.List();
        list1.setBounds(450, 40, 300, 200);
        //****************************************
        setVisible(true);
        tout.setVisible(false);
        scroll_in_output.setVisible(false);
        clear.setEnabled(false);
    }
    //*****************************************************************

    //********************actionPerformed*******************************
    public void actionPerformed(ActionEvent e) {
        JButton c = (JButton) e.getSource();
        if (c == compile) {
            tout.setVisible(true);
            scroll_in_output.setVisible(true);
            clear.setEnabled(true);
            list1.clear();
            output.setText("  Tokens  Tabel         \n================================\n");
            output.append("Token       Token       Token \n");
            output.append("class       value       name \n");
            sourceString = commands.getText();
            str = new StringBuffer(sourceString);
            int in1 = str.indexOf("/*");
            int in2 = str.indexOf("*/");
            while ((in1 != -1) && (in2 != -1)) {
                System.out.println(in1 + "  " + in2);
                if ((in1 == -1) || (in2 == -1)) {
                } else {
                    sourceString = (str.delete(in1, in2 + 2)).toString();
                }
                in1 = str.indexOf("/*");
                in2 = str.indexOf("*/");
            }

            boolean p = true;
            StringTokenizer st = new StringTokenizer(sourceString);
            while (st.hasMoreTokens()) {
                list1.addItem(st.nextToken());
            }
            System.out.print(list1.countItems());
            
            for (int i = 0; i < list1.countItems(); i++) {
                if ((list1.getItem(i)).equals(" ")) {
                } else if ((list1.getItem(i)).equals("\n")) {
                } else if (check.isoperator((list1.getItem(i)).trim())) {
                    int z = i;
                    z = z + 1;
                    if (check.isoperator((list1.getItem(z)).trim())) {
                        
                        System.out.println(list1.getItem(i) + list1.getItem(z) + "    operator");
                        output.append("3          " + list1.getItem(i) + list1.getItem(z) + "    Operator\n");

                        i++;
                    } else {
                        
                        System.out.println(list1.getItem(i) + "  operator");
                        output.append("3          " + list1.getItem(i) + "    Operator\n");

                    }
                } else if (check.isspecial((list1.getItem(i)).trim())) {
                    
                    System.out.println(list1.getItem(i) + "  special");
                    output.append("6           " + list1.getItem(i) + "    Special Char.\n");

                } else if (check.isnum((list1.getItem(i)).trim())) {
                    
                    System.out.println(list1.getItem(i) + "  number");
                    output.append("4          " + list1.getItem(i) + "    Constant Num.\n");

                } else if (check.iskeywords((list1.getItem(i)).trim())) {
                   
                    System.out.println(list1.getItem(i) + "  keyword");
                    output.append("1          " + list1.getItem(i) + "    Keyword\n");

                } else {
                    System.out.println(list1.getItem(i) + "  identifer");
                    
                    output.append("2          " + list1.getItem(i) + "    Identifer\n");

                }
            }
        }
        if (c == clear) {
            commands.setText(" ");
            tout.setVisible(false);
            scroll_in_output.setVisible(false);
            clear.setEnabled(false);
        }

        if (c == exit) {

            System.exit(0);
        }
        
    }
}
//**********************************************************