Steps: First open Google cloud console and you will see below screen. ( N.B. :If you are already logged in with your Gmail account. Otherwise, it asks to log in first.) 2.Then click on APIs & Services menu. 3.After choose on APIs & Services menu you can see below screen and tap on CREATE NEW PROJECT button placed on right hand side. 4. I'm creating a project with name map key generation test. you can give any name and location and after this click on create. 5.After creating a project you can see the dashboard like below and you receive notification of new project. 6. Then click on ENABLE APIs AND SERVICES button locate on top. 7.After click this button Google API library screen open then you have to select Maps javascript API card. 8.On click the card you can see below screen. Then click on enable button. 9.After open the enable screen go to the credential tab and click the credenti
LAMBDA EXPRESSION: Lambda expression is the most advanced features of java and it introduced in java 8.It basically instance of the functional interface(which interface contain only one abstract method).In lambda expression,there is only abstract functions are implemented.functional interfaces are implement only one abstract method but it can contain any number of default and static method. Runnable and Comparable are the example of functional interface. STREAM API: A stream is the sequence of processed data source which supports various operations such as filter, map, reduce, find, match etc. In-stream the aggregate operations and the bulk operations processing convenient and fast. Before stream API, for a simple operation like comparing with a string with the element of a string array, we must iterate the total array and compare the String with each element of the array and get the result. In th