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<!DOCTYPE html><html lang="de-ch"><head><meta charset="utf-8"><meta http-equiv="X-UA-Compatible" content="IE=edge"><meta name="viewport" content="width=device-width,initial-scale=1"><title>Genereische Java Methoden und beschränkte Typen - Finecloud</title><meta name="description" content="Eine Methode kann einen typisierten Parameter erzwingen und einen typisierten Wert zurückgeben: public List<Integer> parseAlleInts(List<String> strings){ List<Integer> ergebnis = new ArrayList<>(); for (String s : strings){ ergebnis.add(Integer.parseInt(s)); } return ergebnis; } So ist es möglich eine Liste von Strings als Paramter in eine Liste von…"><meta name="generator" content="Publii Open-Source CMS for Static Site"><link rel="stylesheet" href="https://www.finecloud.ch/media/plugins/syntaxHighlighter/prism-black.css"><link rel="canonical" href="https://www.finecloud.ch/java-genereische-methoden-und-beschraenkte-typen.html"><link rel="alternate" type="application/atom+xml" href="https://www.finecloud.ch/feed.xml"><link rel="alternate" type="application/json" href="https://www.finecloud.ch/feed.json"><meta property="og:title" content="Genereische Java Methoden und beschränkte Typen"><meta property="og:site_name" content="Finecloud"><meta property="og:description" content="Eine Methode kann einen typisierten Parameter erzwingen und einen typisierten Wert zurückgeben: public List<Integer> parseAlleInts(List<String> strings){ List<Integer> ergebnis = new ArrayList<>(); for (String s : strings){ ergebnis.add(Integer.parseInt(s)); } return ergebnis; } So ist es möglich eine Liste von Strings als Paramter in eine Liste von…"><meta property="og:url" content="https://www.finecloud.ch/java-genereische-methoden-und-beschraenkte-typen.html"><meta property="og:type" content="article"><link rel="shortcut icon" href="https://www.finecloud.ch/media/website/finecloud.png" type="image/png"><link rel="stylesheet" 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datetime="2022-05-28T14:39">Mai 28, 2022</time></div><h1>Genereische Java Methoden und beschränkte Typen</h1></div></header></div><div class="wrapper post__entry"><p>Eine Methode kann einen typisierten Parameter erzwingen und einen typisierten Wert zurückgeben:</p><p><code>public List<Integer> parseAlleInts(List<String> strings){ </code><br><code> List<Integer> ergebnis = new ArrayList<>();</code><br><code> for (String s : strings){</code><br><code> ergebnis.add(Integer.parseInt(s));</code><br><code> }</code><br><code> return ergebnis;</code><br><code>}</code></p><p>So ist es möglich eine Liste von Strings als Paramter in eine Liste von Zahlen (Integern) umzuwandeln.</p></div><footer class="wrapper post__footer"><p class="post__last-updated">This article was updated on Mai 28, 2022</p><ul class="post__tag"><li><a href="https://www.finecloud.ch/tags/collection/">collection</a></li><li><a href="https://www.finecloud.ch/tags/java/">java</a></li><li><a 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