Java test

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Java Logger

Lava Logger offers ten standard logging levels; from highest (coarsest) to lowest (finest):

  • EMERGENCY
  • ALERT
  • CRITICAL
  • FATAL
  • ERROR
  • WARNING
  • NOTICE
  • INFO
  • DEBUG
  • TRACE

History

unknow


<source lang="java"> package ncu.cc.log;

public class Example {

private Logger logger;

public Example () { logger = Logger.getLogger(this.getClass().getName()); logger.setLevel(Logger.LOG_DEBUG); }

public void doSomething() throws Exception { logger.error("%d Hello", 1234);

int list[] = new int[1];

try { list[5] = 10; } catch (Exception e) { logger.fatal(e); throw e; } }

public static void main(String[] args) { Example ex = new Example (); Logger logger = Logger.getLogger();

try { ex.doSomething(); } catch (Exception e) { logger.fatal(e); }

try { int x = 0; x = 5 / x; System.out.println (x); } catch (Exception e) { logger.error(e); } } }

</source>

This is a minimal Hello world program in Java with syntax highlighting:

<source lang="java"> // Hello.java public class Hello {

   public static void main(String[] args) {
       System.out.println("Hello, world!");
   }

} </source>