Ago – 26. märts 2015, kell 08:51

2015-03-26T08:51:39Z

Ago: Uus lehekülg: '
2015-03-26T08:50:46Z

Uus lehekülg: '<source lang="java" import java.util.regex.Matcher; import java.util.regex.Pattern; public class XmlParsingExample { public static void main(String[] args) throws BookShopAp...'

Uus lehekülg
<source lang="java"

import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class XmlParsingExample {

public static void main(String[] args) throws BookShopApiException {
String xml = "<root><books>"
+ "<book><title>Kevade</title><author>Luts</author></book>"
+ "<book><title>Sügis</title><author>Luts</author></book>"
+ "</books></root>";
System.out.println(xml);

// 1) manual, String meetodid
int pos = 0;
while (true) {
// otsin järgneva "<book>"
int bookPos = xml.indexOf("<book>", pos);
if (bookPos == -1) {
break;
}
// otsin järgneva "<title>"
int titleStart = xml.indexOf("<title>", bookPos);
// otsin järgneva "</title>"
int titleEnd = xml.indexOf("</title>", titleStart);
// nende vahel on title
String title = xml.substring(titleStart + "<title>".length(), titleEnd);
System.out.println(title);
// nihutame järjehoidjat
pos = bookPos + 1;
}
// 2) regexp
String s = "gray";
/*
* x? - "x" 0 või 1 kord
* x* - "x" 0 ... korda
* x+ - "x" 1... korda
* x{3} - 3 korda
* x{3,5} - 3 kuni 5 korda
*
* [ae] - "a" või "e"
* [a-zA-Z] - "a", "b", ... "z"
* [0-9] kõik numbrid
* . - suvaline sümbol
*
* [^a] - ^ otsi kõike, mis ei ole [] vahel
* [^a-z] - ükskõik mis sümbol, mis pole a-z
*
* a?
* (at)?
*
* [ae]?
*
* [ae]+
/
Pattern p = Pattern.compile("gr.y");
Matcher m = p.matcher(s);
if (m.find()) {
System.out.println("found at:" + m.start() + " ends at:" + m.end());
}
System.out.println("---");
// 1) lazy match
p = Pattern.compile("<title>([^<])(</title>)");
m = p.matcher(xml);
while (m.find()) {
System.out.println("found at:" + m.start() + " ends at:" + m.end());
System.out.println(m.group(0));
System.out.println(m.group(1));
System.out.println(m.group(2));
}

}

}
</source>

←Vanem redaktsioon		Redaktsioon: 26. märts 2015, kell 08:51
1. rida:		1. rida:
−	<source lang="java"	+	<source lang="java">

	import java.util.regex.Matcher;		import java.util.regex.Matcher;