teststring2.java

正则表达式的一个小例子

public class TestString2 {
	private String str;
	private int dig;
	private int low;
	private int up;
	private int others;
	public TestString2(String st)
	{
		str=st;
		String s;
		s=str.replaceAll("[^0-9]", "");
		dig=s.length();
		
		s=str.replaceAll("[^a-z]","");
		low=s.length();
		
		s=str.replaceAll("[^A-Z]","");
		up=s.length();
		
		others=str.length()-dig-low-up;
		
	}

	public String getStr() {
		return str;
	}

	
	public int getDig() {
		return dig;
	}

	public int getLow() {
		return low;
	}

	public int getUp() {
		return up;
	}
	public int getOthers() {
		return others;
	}
	
	public static void main(String[] args) {
		
		TestString2 s=new TestString2("r78@#F.?fewf.  fe3fw0f");
		
		System.out.println("字符串:"+s.getStr());
		System.out.println("有数字:"+s.getDig());
		System.out.println("有小写字母:"+s.getLow());
		System.out.println("有大写字母:"+s.getUp());
		System.out.println("其他类型:"+s.getOthers());
	}
}