2015.9.14 博逸楼510，2015.9.14博逸510,package java

2015.9.14 博逸楼510，2015.9.14博逸510,package java

package javaapplication3;import java.util.regex.Matcher;import java.util.regex.Pattern;public class JavaApplication3 {    public static void main(String[] args) {        // TODO code application logic here        /*        String s1= "pattern";        Pattern mypatten = Pattern.compile(s1);        String s2=mypatten.pattern();        System.out.println(s2);        */        /*        Pattern pattern = Pattern.compile("John");        Matcher matcher = pattern.matcher("John does this,and John asdasdasda");        StringBuffer s3 = new StringBuffer();        while(matcher.find())        {            matcher.appendReplacement(s3, "sam");            System.out.println(s3.toString());        }        */        /*        Pattern pattern = Pattern.compile("John");        Matcher matcher = pattern.matcher("John does this,and John does that");        StringBuffer s3 = new StringBuffer();        while(matcher.find())        {            matcher.appendReplacement(s3, "sam");            System.out.println(s3.toString());        }        matcher.appendTail(s3);        System.out.println(s3.toString());    */          //Using regex check how many times "is" has been written in a string?        //"He is going to meet his uncle whi is working in Beging"        /*        Pattern pattern=Pattern.compile("");        Matcher matcher=pattern.matcher("John does this,and John does that");        String s2=matcher.replaceAll("sam");        System.out.println("replaceAll="+s2);        */        /*        String str = "He is going to meet his uncle whi is working in Beging";        Pattern pattern =Pattern.compile("is");        Matcher matcher = pattern.matcher(str);        int count=0;        while(matcher.find())        {count++;}        System.out.println(count);*/        //201440706666        String str ="201440706666";        Pattern pattern = Pattern.compile("20144070[0-9]{4}");        Matcher matcher = pattern.matcher(str);        if(matcher.matches())            System.out.println("ok");        else            System.out.println("bu ok");    }}