Vovels.java

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

public class Vovels  implements ActionListener{
	JLabel l1,l2;
	JTextArea area;
	JButton b;
	Vovels (){
		JFrame f = new JFrame();
		l1 = new JLabel();
		l1.setBounds(50,25,100,30);
		l2=new JLabel();
		l2.setBounds(160,25,100,30);
		area = new JTextArea();
		area.setBounds(20,75,250,200);
		b= new JButton("Count word");
		b.setBounds(100,300,120,30);
		b.addActionListener(this);
		f.add(l1);f.add(l2);f.add(area);f.add(b);
		f.setSize(450,450);
		f.setLayout(null);
		f.setVisible(true);
}
	public void actionPerformed(ActionEvent e) {
		String Str;
		int numVowels;
		
		Str=JOptionPane.showInputDialog(null,"Enter string");
		numVowels=countVowels(Str);
		
	}
	static int countVowels(String text) {
		int count = 0;
		text = text.toLowerCase();
		
		for(int i=0;i<text.length();i++) {
			char c = text.charAt(i);
			if(c=='a'||c=='e'||c=='i'||c=='o'||c=='u') {
				count++;
			}
		}
		return count;
	}
	public static void main (String args[]) {
		new Vovels();
		
	}
}