1. Significant reason for introducing java 8 was to introduce conciseness in the code.
2. Java 8 Brings the functional programming which enabled by lambda expressions(a powerful tool to create concise code base).
3. If you ever observed/heard, With Python,Scala we can do the same things in very less LOC. By mid 20s Java lost a large market due to these languages. To prevent further loss java upgraded itself from only OOPs language to some concepts of FP to create concise code base.

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1. Lambda expressions
2. Functional interface
3. Stream API
4. Default Methods in the interface
5. Static methods
6. Optional class
7. Method references
8. Date API
9. Nashorn JavaScript Engine

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1. Compact Code
2. More readable and reusable code
3. More testable code
4. Parellel operations

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1. Lambda expression is an anonymous function(Without name,return type and access modifiers and having one lambda(->))
2. 1. Normal programming Technique

              
                  public int add(int a ,int b){                
                      return(a+b);
                  }
              
          

   2. Equivalent Lambda Expressions

      <pre>
          <code>
             (a,b)-> (a+b);
           </code>
      </pre>
      </li>
      </ol>
      

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