这篇文章将为大家详细讲解有关代码行号如何利用Java获取,文章内容质量较高,因此小编分享给大家做个参考,希望大家阅读完这篇文章后对相关知识有一定的了解。
具体实现代码:
/** * */ package leo.demo.training; /** * Get current java file name and current code line number * @author Leo Xie */ public class CurrentLine { /** * @param args */ public static void main(String[] args) { StackTraceElement ste1 = null; // get current thread and its related stack trace StackTraceElement[] steArray = Thread.currentThread().getStackTrace(); int steArrayLength = steArray.length; String s = null; // output all related info of the existing stack traces if(steArrayLength==0) { System.err.println("No Stack Trace."); } else { for (int i=0; i<steArrayLength; i++) { System.out.println("Stack Trace-" + i); ste1 = steArray[i]; s = ste1.getFileName() + ": Line " + ste1.getLineNumber(); System.out.println(s); } } // the following code segment will output the line number of the "new " clause // that's to say the line number of "StackTraceElement ste2 = new Throwable().getStackTrace()[0];" StackTraceElement ste2 = new Throwable().getStackTrace()[0]; System.out.println(ste2.getFileName() + ": Line " + ste2.getLineNumber()); // the following clause will output the line number in the external method "getLineInfo()" System.out.println(getLineInfo()); // the following clause will output its current line number System.out.println(getLineInfo(new Throwable().getStackTrace()[0])); } /** * return current java file name and code line number * @return String */ public static String getLineInfo() { StackTraceElement ste3 = new Throwable().getStackTrace()[0]; return (ste3.getFileName() + ": Line " + ste3.getLineNumber()); } /** * return current java file name and code line name * @return String */ public static String getLineInfo(StackTraceElement ste4) { return (ste4.getFileName() + ": Line " + (ste4.getLineNumber())); } }
关于代码行号如何利用Java获取就分享到这里了,希望以上内容可以对大家有一定的帮助,可以学到更多知识。如果觉得文章不错,可以把它分享出去让更多的人看到。
免责声明:本站发布的内容(图片、视频和文字)以原创、转载和分享为主,文章观点不代表本网站立场,如果涉及侵权请联系站长邮箱:is@yisu.com进行举报,并提供相关证据,一经查实,将立刻删除涉嫌侵权内容。