package debugging;

import java.io.File;

import java.io.FileWriter;

import java.io.IOException;

import java.io.PrintWriter;

import java.util.Date;

import java.util.Random;

import java.util.logging.Logger;

/**

* Created by husiv on 10/10/16.

*/

public class DebuggingLesson {

public static void main(String[] args) throws IOException {

//1

Logger.getGlobal().info("info");

System.out.println("print");

//2

//psvm

//4

Random random = new Random() {

public double nextDouble() {

double dbl = super.nextDouble();

Logger.getGlobal().info(dbl + "");

return dbl;

}

};

//5

try{

} catch (RuntimeException e) {

e.printStackTrace();

}

secondMethod();

//6

thredMethod();

//7

//java MyProgram > errors.txt

//8

Thread.setDefaultUncaughtExceptionHandler(new Thread.UncaughtExceptionHandler() {

@Override

public void uncaughtException(Thread t, Throwable e) {

//save to file

}

});

//9

//-verbose

//10

//-Xlint

new Date().getDate();

//http://www.sonarqube.org/

//11

//java console

//12

//jmap - dump:format=b,file=dump.txt processId

//jhat dumpfile.txt

//13

//-Xprof

}

private static void secondMethod() {

Thread.dumpStack();

}

static void thredMethod() throws IOException {

PrintWriter writer = new PrintWriter(new FileWriter(new File("test.txt")));

new Throwable("mtExeption").printStackTrace(writer);

writer.flush();

writer.close();

}

}