How to solve the error "var cannot be resolved to a type"?

Question

I am getting the error for the following line:

var playerAmt = player.stream().filter(Card::isTrue).count();

Error:

var cannot be resolved to a type

I am not writing the whole code here because it's quite long and I think it won't help much. The same error exists at different places in the code.

I am using Eclipse IDE. I also searched this on the internet but didn't help.

@Eran java version "1.8.0_231" Java(TM) SE Runtime Environment (build 1.8.0_231-b11) — Ricky, Dec 01 '19 at 09:45
var is not supported in Java 8. It was introduced in Java 10. — JB Nizet, Dec 01 '19 at 09:46
btw when I wrote on cmd: java -version, it shows java 13. Then, the Eclipse must also be using java 13, right? Or is it not necessary? — Ricky, Dec 01 '19 at 11:54
No, eclipse doesn't necessarily use the Java version that your terminal uses. https://stackoverflow.com/questions/13635563/setting-jdk-in-eclipse — JB Nizet, Dec 01 '19 at 11:56

score 1 · Answer 1 · answered Nov 03 '20 at 19:22

1

If you are using Java 10+, change the compiler level on Eclipse: Project Properties > Java Compiler > Compiler compliance level: 10(+).

answered Nov 03 '20 at 19:22

Bruno

1 Answers1