Java 7 Syntax error

Question

I have Java 7 running on my mac:

    System.out.println(System.getProperty("java.version")); // prints 1.7.0_05

Project was created using

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Project properties confirm, i am on Java 7

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Default system Java is 7

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The following however results in syntax error

public static void main(String[] args) {    
    // Underscores in Numeric Litarals are ok here  
    int i = 11_234;
}

Eclipse is complaining with Syntax error on token "_234", delete this token

What happens on the commandline when you run javac -version? — Ray Toal
– Ray Toal, Commented Jul 21, 2012 at 21:22
In Eclipse Syntax error on token "_234", delete this token — James Raitsev
– James Raitsev, Commented Jul 21, 2012 at 21:31
Negative, this in fact is the first and only line in my Main class. Updated question — James Raitsev
– James Raitsev, Commented Jul 21, 2012 at 21:33

Community · Accepted Answer · 2017-05-23 10:32:46Z

5

On Eclipse's Project|Properties dialog, there two entities Java Build Path and Java Compiler. The former will tell you what classes are used during the build, and you may have a Java 7 JRE listed there. The latter, however, is the compiler that will be used to compile your code. It is possible to have Eclipse use a Java 6 compiler even with a Java 7 JRE on the build path.

My guess is that you are using Helios, not Indigo. See Programming Java 7 in Eclipse

edited May 23, 2017 at 10:32

CommunityBot

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answered Jul 21, 2012 at 21:38

Ray Toal

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3 Comments

James Raitsev Over a year ago

Thank you. Indeed this seems to be the case. I don't have 1.7 as an option on my Java Compiler section. How may i get it to appear there?

Ray Toal Over a year ago

Are you using Helios or Indigo?

James Raitsev Over a year ago

Downloading Juno now. Of all the things, updating Eclipse itself did not occur to me

Andy Harris · Accepted Answer · 2012-07-21 21:41:35Z

5

Make sure your version of Eclipse is 3.7.1 (this is Eclipse 3.7 Maintenance Build) or higher (see JDT/Eclipse Java 7 Support) and that you have registered Java 7 with Eclipse (see Eclipse and Java 7).

answered Jul 21, 2012 at 21:41

Andy Harris

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