Techie Madness

https://github.com/sujjjith/DS/tree/master/src/main/java/ds/designpattern/state

https://github.com/sujjjith/DS/tree/master/src/main/java/ds/designpattern/decorator

https://github.com/sujjjith/DS/tree/master/src/main/java/ds/designpattern/adapter

https://github.com/sujjjith/DS/tree/master/src/main/java/ds/designpattern/facade

public class Sort {     public Stack sort(Stack s){         Stack sorted = new Stack();         while (!s.isEmpty()) {             int tmp = s.pop();             while(!sorted.isEmpty() && sorted.pop() > tmp){                 s.push(sorted.pop());             }             sorted.push(tmp);             System.out.println(sorted.TOP);         }         return sorted;     } }

Functions are computed values and cannot perform permanent environmental changes to SQL Server (i.e. no INSERT or UPDATE statements allowed). A Function can be used inline in SQL Statements if it returns a scalar value or can be joined upon if it returns a result set.

public class First100Prime {     public void printFirst100Prime(){         for(int i=1; i<=100; i++){             boolean isPrime = true;             for(int j=2; j<i; j++){                 if(i%j == 0){                     isPrime = false;                     break;                 }             }                 if(isPrime)                     System.out.println(i);         }     } } ----------------------------------- package ds.numbers; import org.junit.Test; import static org.junit.Assert.*; public class First100PrimeTest {   ...

https://github.com/sujjjith/DS/tree/master/src/main/java/ds/designpattern/observer

Guidelines for Builder design pattern in Java 1) Make a static nested class called Builder inside the class whose object will be build by  Builder . In this example its  Cake . 2) Builder class will have exactly same set of fields as original class. 3) Builder class will expose method for adding ingredients e.g.  sugar()  in this example. each method will return same  Builder  object. Builder will be enriched with each method call. 4)  Builder.build()  method will copy all builder field values into actual class and return object of  Item  class. 5) Item class (class for which we are creating Builder) should have  private constructor   to create its object from  build()  method and prevent outsider to access its constructor. public   class  BuilderPatternExample  {        public   static   void  main ( String  args [])   {     ...

Java serialization process only continues in object hierarchy till the class is Serializable i.e. implements Serializable  interface in Java  and values of the instance variables inherited from super class will be initialized by calling constructor of Non-Serializable Super class during deserialization process. Once the  constructor chaining  will started it wouldn't be possible to stop that , hence even if classes higher in hierarchy implements Serializable interface , there constructor will be executed. As you see from the statement this Serialization interview question looks very tricky and tough but if you are familiar with key concepts its not that difficult. Read more:  http://javarevisited.blogspot.com/2011/04/top-10-java-serialization-interview.html#ixzz3uyZyfZFC

One of the easy question about Serialization process in Java. If you try to serialize an object of a class which implements Serializable, but the object includes a reference to an non- Serializable class then a  ‘NotSerializableException ’ will be thrown at runtime and this is why I always put a  SerializableAlert  (comment section in my code) , one of the  code comment best practices , to instruct developer to remember this fact while adding a new field in a Serializable class. Read more:  http://javarevisited.blogspot.com/2011/04/top-10-java-serialization-interview.html#ixzz3uyZjnIV7