Java – compilation errors using NetBeans 8 but lower than lambda expressions

• Java

I'm using NetBeans 8 When my code contains a lambda expression and I try to compile, I receive the following error message:

lambda expression not expected here

lambda expressions are not supported in -source 1.5
  (use -source 8 or higher to enable lambda expressions)
----
(Alt-Enter shows hints)

Solution

Change the compiler version of your source code to the project properties of JDK 8, and then first check whether one is installed

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