testcountletter1.java

本例演示了怎样统计一串数字中各个数字的个数

import javax.swing.JOptionPane;
import java.lang.String.*;

public class testCountLetter1
{
	public static int countLetters(String s)
	{
		return s.length();//toCharArray().length;
	}
	public static void main(String [] args)
	{
		int i=countLetters("java in 2008");
		System.out.println(""+i);
		JOptionPane.showMessageDialog(null,i,"testCountLetters",JOptionPane.INFORMATION_MESSAGE);
	}
}