commons之CharSet

 

import org.apache.commons.lang3.CharSet;

public class CharSetDemo {

	private static final String[] s = new String[] {"d","S","s","S","1","%"};
	/**
	 * @param args
	 */
	public static void main(String[] args) {
		System.out.println("ASCII_ALPHA:"+CharSet.ASCII_ALPHA);
		System.out.println("ASCII_ALPHA_LOWER:"+CharSet.ASCII_ALPHA_LOWER);
		System.out.println("ASCII_ALPHA_UPPER:"+CharSet.ASCII_ALPHA_UPPER);
		System.out.println("ASCII_NUMERIC:"+CharSet.ASCII_NUMERIC);
		System.out.println("EMPTY:"+CharSet.EMPTY);
		
		/*
		 * 根据输入的字符串创建一个字符集实例.
		 * 如果输入的字符串有多个相同的字符,则只取一个.
		 */
		System.out.println("getInstance:"+CharSet.getInstance("sdssss$%^&*()_ss11111111=1"));
		
		/*
		 * 根据输入的字符数组返回一个字符集数组
		 * 如果输入的字符串数组里有多个相同的字符,则只取一个.
		 */
		System.out.println("getInstance 数组:"+CharSet.getInstance(s));
		
		
	}

}