countbean.java

用JSP开发的考勤系统 编译器为myeclipse

package test;

public class CountBean {
	public int countChars(String string){
		int count = 0;
		if(string != null){
			char[] chars = string.toLowerCase().toCharArray();
			for(int i=0;i<chars.length;i++){
		  		if(chars[i] >= 'a' && chars[i] <='z')
		  			count++;
		  		else{
		  			return -1;
		  		}
		  	}
		}
		return count;
	}
}