I recently installed Netbeans 8.2 with JDK 8 on Windows 7 Enterprise 64-bit OS. Started the installation with jdk-8u131-windows-x64.exe, which was successful. After that tried to install netbeans-8.2-javase-windows.exe, which gave me error stating could not find JDK. After searching over the internet I could get Netbeans to install from command prompt with netbeans-8.2-javase-windows.exe --jdkhome "C:\Program Files\Java\jdk1.8.0_131", Netbeans8.2 installation was successful.
Wrote a simple helloapp program: 
package helloapp;

/**
 *
 * @author dee
 */
public class Helloapp {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        // TODO code application logic here
        System.out.println("hello");
    }
    
}

When I run this project by any means Run Main project, F6, right click run file gives me output as :

run:
BUILD SUCCESSFUL (total time: 0 seconds).

I have worked with previous version 8.1, and have never had problem. Wonder what is missing here. Could give a resolution.