/*This is a basic GUI based Java application with some action buttons and respective display boxes.

Action buttons: Count vowels, Count consonants, Count punctuations, Capitalize

Other component: File browser to select any text file from the local machine

Input: Select any text file from the local machine

Output: as per the action event provided through the action button through display.

Button ‘Capitalize’ will change the content of the selected file in uppercase and save it in a

file named ‘UX.txt’ where X will be replaced by your selected file name.*/

import java.io.*;

import java.awt.event.*;

import javax.swing.*;

import javax.swing.filechooser.*;

import java.io.FileWriter;

public class Question1 extends JFrame implements ActionListener

{

JMenuBar m;

JMenu file;

JFrame f;

JMenuItem open, save;

JButton a, b, c, d, s;

JTextField t1, t2, t3, t4, t5;

int cv, ca, cp;

String s1, s2, fn;

Question1()

{

open = new JMenuItem("Open File");

open.addActionListener(this);

save = new JMenuItem("Save File");

save.addActionListener(this);

file = new JMenu("File");

file.add(open);

file.add(save);

m = new JMenuBar();

m.setBounds(50,25,100,30);

m.add(file);

add(m);

t1 = new JTextField();

t1.setBounds(50, 50, 150, 40);

add(t1);

a = new JButton("Consonants");

a.setBounds(50, 100, 100, 40);

a.addActionListener(this);

add(a);

t2 = new JTextField();

t2.setBounds(50, 150, 150, 40);

add(t2);

b = new JButton("Vowel");

b.setBounds(50, 200, 100, 40);

b.addActionListener(this);

add(b);

t3 = new JTextField();

t3.setBounds(50, 250, 150, 40);

add(t3);

c = new JButton("Punctuations");

c.setBounds(50, 300, 100, 40);

c.addActionListener(this);

add(c);

t4 = new JTextField();

t4.setBounds(50, 350, 150, 40);

add(t4);

d = new JButton("Capitalize");

d.setBounds(50, 400, 100, 40);

d.addActionListener(this);

add(d);

t5 = new JTextField();

t5.setBounds(50, 450, 150, 40);

add(t5);

s = new JButton("Clear");

s.setBounds(50, 500, 100, 40);

s.addActionListener(this);

add(s);

}

public void actionPerformed(ActionEvent e)

{

if(e.getSource()==open)

{

JFileChooser f = new JFileChooser();

int i=f.showOpenDialog(this);

if(i==JFileChooser.APPROVE_OPTION)

{

File fc = f.getSelectedFile();

String filepath = fc.getPath();

fn = filepath;

try

{

BufferedReader br = new BufferedReader(new FileReader(filepath));

s1 =" ";

s2 =" ";

while((s1 = br.readLine())!=null)

{

s2+=s1+" ";

}

t1.setText(s2);

s2=s2.toLowerCase();

br.close();

}

catch(Exception o)

{

o.printStackTrace();

}

}

}

else if(e.getSource()==a)

{

ca=0;

for(int i=0;i<s2.length();i++)

{

if(s2.charAt(i)>='a' && s2.charAt(i)<='z')

{

if(s2.charAt(i)=='a'|| s2.charAt(i)=='e'|| s2.charAt(i)=='i'|| s2.charAt(i)=='o'|| s2.charAt(i)=='u')

{

ca+=0;

}

else

{

ca+=1;

}

}

}

t2.setText(Integer.toString(ca));

}

else if(e.getSource()==b)

{

cv=0;

s2=s2.toLowerCase();

for(int i=0;i<s2.length();i++)

{

if(s2.charAt(i)=='a'|| s2.charAt(i)=='e'|| s2.charAt(i)=='i'|| s2.charAt(i)=='o'|| s2.charAt(i)=='u')

{

cv+=1;

}

}

t3.setText(Integer.toString(cv));

}

else if(e.getSource()==c)

{

cp=0;

for(int i=0;i<s2.length();i++)

{

if(s2.charAt(i)=='.'||s2.charAt(i)=='?'||s2.charAt(i)==','||s2.charAt(i)=='!'||s2.charAt(i)== '"'||s2.charAt(i)==39||s2.charAt(i)==';'||s2.charAt(i)==':'||s2.charAt(i)==40||s2.charAt(i)==41||s2.charAt(i)==91||s2.charAt(i)==93||s2.charAt(i)=='_')

{

cp+=1;

}

}

t4.setText(Integer.toString(cp));

}

else if(e.getSource()==d)

{

s2 = s2.toUpperCase();

t5.setText(s2);

}

else if(e.getSource() == save)

{

try{

int y=0;

for(int i=0;i<fn.length();i++)

{

if(fn.charAt(i)==47)

{

y=i;

}

}

fn = fn.substring(0, y+1) + "u" + fn.substring(y+1, fn.length());

File file = new File(fn);

FileWriter f =new FileWriter(file);

BufferedWriter o = new BufferedWriter(f);

o.write(s2);

o.close();

}

catch(Exception g)

{

g.printStackTrace();

}

}

else if(e.getSource()==s)

{

t1.setText(" ");

t2.setText(" ");

t3.setText(" ");

t4.setText(" ");

t5.setText(" ");

}

}

public static void main(String[] args)

{

Question1 o = new Question1();

o.setSize(500,500);

o.setLayout(null);

o.setVisible(true);

o.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

}

}