java-10

I have installed netbeans (Apache version) with JDK 10 successfully, but can't use var keyword in my project, It keep saying cannot find symbol . Any help would be appreciated. To use the var keyword with JDK 10 in NetBeans: Ensure that you are running the latest version of Apache NetBeans . In NetBeans add JDK 10 as a Java platform ( Tools > Java Platforms > Add Plaform... ). It is not necessary to make JDK 10 the default. Create a simple Java application ( File > New Project... > Java > Java Application ) and declare a var variable (e.g. var v = 7; ) within the main() method. Select the

As far as I know there are no plans from oracle to ship java for 32 Bit - but maybe I misunderstand the situation. If I'm correct - what do we all do if we need to support 32-Bit libraries (dlls)? And whats about 32 Bit OSes out there? Currently this seems to be a huge impact in the future but as I said - maybe I'm wrong. Fact is that we can't download a Java 10 runtime in 32 Bit as there are only 64 Bit Download-Links. Oracle is not the only party building and distributing OpenJDK. For example Azul maintains, but does not certify as TCK-compliant, 32bit windows builds as part of their Zulu

I am trying to start a server using jre 10.0.1 64 bit. There is an obvious change in the settings for the JVM in windows start batch files. With the setting of -XX:+UseParNewGC as the reference point of the error what would this need to be changed to in order to get a JVM server start with java 10 versus the java 8 settings I have shown? The line of code causing the error reference is: set JAVA_PARAMETERS=-XX:+UseParNewGC -XX:+CMSIncrementalPacing -XX:+CMSClassUnloadingEnabled -XX:ParallelGCThreads=2 -XX:MinHeapFreeRatio=5 -XX:MaxHeapFreeRatio=10 Peter Lawrey This collectors was deprecated in

Following JEP 286: Local-Variable Type Inference description I am wondering, what the reason is for introducing such a restriction, as: Main.java:199: error: cannot infer type for local variable k var k = { 1 , 2 }; ^ (array initializer needs an explicit target-type) So for me logically it should be: var k = {1, 2}; // Infers int[] var l = {1, 2L, 3}; // Infers long[] Because Java compiler can already infer properly the type of an array: void decide() { arr(1, 2, 3); // call void arr(int ...arr) arr(1, 2L, 3); // call void arr(long ...arr) } void arr(int ...arr) { } void arr(long ...arr) { }

I was working on a problem to store reference of two classes within each other For Example: class A { B b; A(B b){ this.b = b;} } class B { A a; B(A a){ this.a = a;} } public static void main(String...s){ A a = new A(new B(null)); a.b.a = a; } Now if instead of above initialisation, if I use below statement: A a = new A(new B(a)); I got below error which is quite obvious: Main.java:19: error: variable a might not have been initialised A a = new A(new B(a)); But if I try the same on JShell, it works just fine (Just to be extra sure that variable a has never been initialized, I checked for

I remember reading somewhere that local variables with inferred types can be reassigned with values of the same type, which would make sense. var x = 5; x = 1; // Should compile, no? However, I'm curious what would happen if you were to reassign x to an object of a different type. Would something like this still compile? var x = 5; x = new Scanner(System.in); // What happens? I'm currently not able to install an early release of JDK 10, and did not want to wait until tomorrow to find out. Would not compile, throws "incompatible types: Scanner cannot be converted to int" . Local variable type