2013techsmarts

jshell> public class Sample {
   ...> public int add(int a, int b) {
   ...> return a+b;
   ...> }
   ...> }
|  created class Sample
jshell> Sample s = new Sample();
s ==> Sample@49993335

jshell> s.add(10,9);

2013techsmarts

jshell> public class Sample {
   ...> public static void join() {
   ...> StringBuilder sb = new StringBuilder();
   ...> sb.append("Smart").append(" ").append("Techie");
   ...> System.out.println("The string is " + sb.toString());
   ...> }
   ...> }
|  created class Sample

jshell> Sample.join();

2013techsmarts

jshell> List<String> list = new ArrayList<String>();
list ==> []

jshell> list.add("Smart");
$2 ==> true

jshell> list.add("Techie");
$3 ==> true

jshell> System.out.println("The list values are: "+ list);

2013techsmarts

jshell> List immutableList = List.of();
immutableList ==> []

//Add an item to the list
jshell> immutableList.add("Smart");
|  Warning:
|  unchecked call to add(E) as a member of the raw type java.util.List
|  immutableList.add("Smart");
|  ^------------------------^
|  java.lang.UnsupportedOperationException thrown:

2013techsmarts

jshell> List immutableList = List.of("Smart","Techie");
immutableList ==> [Smart, Techie]

jshell> //add an item to the list

jshell> immutableList.add("Smart_1");
|  Warning:
|  unchecked call to add(E) as a member of the raw type java.util.List
|  immutableList.add("Smart_1");
|  ^--------------------------^

2013techsmarts

jshell> Map immutableMap = Map.of(1,"Smart",2,"Techie");
immutableMap ==> {1=Smart, 2=Techie}

//Get item from Map
jshell> immutableMap.get(1);
$2 ==> "Smart"

//Add item to map
jshell> immutableMap.put(3,"Smart_1");
|  Warning:

2013techsmarts

jshell> public interface Sample {
   ...> default void doSomeThing(String message) {
   ...>  //Call private method
   ...>    doSomeThing();
   ...>   System.out.println("The deafult interface method!!!");
   ...>
   ...> }
   ...>
   ...> private void doSomeThing() {
   ...> System.out.println("Demonstration of interface private methods!!!");

2013techsmarts

jshell> public interface Sample {
   ...>
   ...> private void doSomeThing();
   ...>
   ...> }
|  Error:
|  missing method body, or declare abstract
|  private void doSomeThing();
|  ^-------------------------^

2013techsmarts

<dependency>
	<groupId>de.codecentric</groupId>
	<artifactId>spring-boot-admin-server</artifactId>
	<version>1.5.1</version>
</dependency>
<dependency>
	<groupId>de.codecentric</groupId>
	<artifactId>spring-boot-admin-server-ui</artifactId>
	<version>1.5.1</version>
</dependency>

2013techsmarts

package org.samrttechie;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;

import de.codecentric.boot.admin.config.EnableAdminServer;