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In this article, the editor introduces in detail "how to use Java soft applications in the browser". The content is detailed, the steps are clear, and the details are handled properly. I hope this article "how to use Java soft applications in the browser" can help you solve your doubts.

1. Description

If a web page collects content at the end of browsing, it needs to be rebuilt by pressing back to view the previously viewed page.

If the browsed web pages are stored in memory, it will cause a lot of memory waste and even lead to memory overflow.

2. Instance / / get the browser object to browse Browser browser = new Browser (); / / load the browsing page BrowserPage page = browser.getPage () from the background program; / / set the browsed page to a soft reference SoftReference softReference = new SoftReference (page) / / when you roll back or browse this page again, if (softReference.get ()! = null) {/ / has sufficient memory and has not been reclaimed by the collector, so directly get the cache page = softReference.get ();} else {/ / insufficient memory, the soft-referenced object has been recycled page = browser.getPage (); / / rebuild the soft reference softReference = new SoftReference (page);}

Instance expansion:

Byte [] data = new byte [1: 1024: 1024]; ReferenceQueue referenceQueue = new ReferenceQueue (); SoftReference softReference = new SoftReference (data,referenceQueue); data = null;System.out.println ("before:" + softReference.get ()); try {for (int I = 0; I byte [] temp = new byte [3: 1024: 1024]; System.out.println ("processing:" + softReference.get ());} catch (Throwable t) {System.out.println ("after:" + softReference.get ()); t.printStackTrace () } while (referenceQueue.poll ()! = null) {System.out.println ("self:" + softReference); softReference.clear (); softReference = null;System.out.println ("last:" + softReference) } VM options:-Xms5m-Xmx5m-XX:+PrintGC read here, this article "how to use Java soft applications in browsers" has been introduced. If you want to master the knowledge of this article, you still need to practice and use it before you can understand it. If you want to know more about related articles, welcome to follow the industry information channel.

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