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@Java_vs_Java
For Java Geek who want to find difference between latest Java versions.
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#Java 9 introduced private methods in Interfaces. Java8 introduced default public methods. Java7 had methods with signatures only without any implementation.
Practical Java8 stream performance article #Java #Java8 #Performance blog.codefx.org/java/stream-pe…
In #Java8 programmer can include static methods in #interface. @ FunctionalInterface annotation 'll be use for that interface. The #FunctionalInterface can have zero or more static methods.
#Lambda expressions: ((str) -> str.toUpperCase()); can be written as (str -> str.toUpperCase()); //without paranthesis And more precisely as (String::toUpperCase); // :: is #MethodReference. #java8 #JavaEE8
Java8 basically introduced following imp. features: Lambda expression. Functional Interface. Method references. Date/Time API.
In #Java 7 you can have only methods with signatures and without any implementation. With #Java8 now you can have default methods in Interface.
Lambda Exp. basically assign a function to variable. v7: public int add(int a,int b){return a+b;} v8 LambdaExp: num = (int a, int b) => a+b;
Java is Object oriented programming language. But in #Java 8, Functional programming features such as lambda expressions is added.
Java9 has all Java8 features. Java8 has all Java7 features. #Java is Backward-compatible language unlike .NET
Twitter handle to created to understand latest versions of Java8 and Java9. Guidance and suggestions always welcome. #Java
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