Java is a high-level, cross-platform, object-oriented programming language that allows applications to be written once and run on a multitude of different devices. Java applications are ubiquitous, and the language is consistently ranked as one of the most popular and dominant in the world. Christopher Rose’s Java Succinctly Part 1 describes the foundations of Java–from printing a line of text to the console, to inheritance hierarchies in object-oriented programming. The e-book covers practical aspects of programming, such as debugging and using an IDE, as well as the core mechanics of the language.

ERROR in ./node_modules/angular2-permission/index.ts
Module build failed: Error: C:\Front\node_modules\angular2-permission\index.ts is missing from the TypeScript compilation. Please make sure it is in your tsconfig via the 'files' or 'include' property.
The missing file seems to be part of a third party library. TS files in published libraries are often a sign of a badly packaged library. Please open an issue in the library repository to alert its author and ask them to package the library using the Angular Package Format (https://goo.gl/jB3GVv).
    at AngularCompilerPlugin.getCompiledFile (C:\Front\node_modules\@ngtools\webpack\src\angular_compiler_plugin.js:674:23)
    at plugin.done.then (C:\Front\node_modules\@ngtools\webpack\src\loader.js:467:39)
    at process._tickCallback (internal/process/next_tick.js:68:7)

// The getDate() function returns a nested function which refers the 'date' variable defined
// by outer function getDate()
function getDate() {
   var date = new Date();    // This variable stays around even after function returns

   // nested function
   return function () {
      return date.getMilliseconds();
   }
}

// Once getDate() is executed the variable date should be out of scope and it is, but since
// the inner function
// referenes date, this value is available to the inner function.
var dt = getDate();

alert(dt());
alert(dt());

        function myNonClosure() {
            var date = new Date();
            return date.getMilliseconds();
        }

var MyDate = function () {
    var date = new Date();
    var getMilliSeconds = function () {
        return date.getMilliseconds();
    }
}

var dt = new MyDate();

alert(dt.getMilliSeconds());  // This will throw error as getMilliSeconds is not accessible.

// This is closure 
var MyDate = function () {
    var date = new Date();   // variable stays around even after function returns
    var getMilliSeconds = function () {
        return date.getMilliseconds();
    };
    return {
        getMs : getMilliSeconds
    }
}