删除字符串中的注释

本文介绍了删除字符串中的注释的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述 private static String filterString(String code) { String partialFiltered = code.replaceAll("/\\*.*\\*/", ""); String fullFiltered = partialFiltered.replaceAll("//.*(?=\\n)", ""); return fullFiltered; }

我尝试使用上面的代码删除字符串中的所有注释，但不是工作-请帮忙。

I tried above code to remove all comments in a string but it isn't working - please help.

推荐答案

与 // single 和多行 / *注释* / 。

String sourceCode = "/*\n" + " * Multi-line comment\n" + " * Creates a new Object.\n" + " */\n" + "public Object someFunction() {\n" + " // single line comment\n" + " Object obj = new Object();\n" + " return obj; /* single-line comment */\n" + "}"; System.out.println(sourceCode.replaceAll( "//.*|/\\*((.|\\n)(?!=*/))+\\*/", ""));

输入：

/* * Multi-line comment * Creates a new Object. */ public Object someFunction() { // single line comment Object obj = new Object(); return obj; /* single-line comment */ }

输出：

public Object someFunction() { Object obj = new Object(); return obj; }