Accessing scala object fields from java

Question

I'm having trouble accessing the fields of a scala object from java.

Scala:

object TestObject {
  val field = 5 
}

Java:

public class JavaTest
{
  public static void main(String[] args)
  {
    int i = TestObject.field;
  }
}

Error:

[error] JavaTest.java: cannot find symbol
[error] symbol  : variable field
[error] location: class TestObject
[error]     int i = TestObject.field;

To see all the public members use: javap -classpath <classpath> <classname>. E.g. javap -classpath target/scala-2.9.1.final/classes TestObject — dsg
– dsg, Commented Oct 17, 2011 at 1:15

dsg · Accepted Answer · 2011-10-17 01:05:01Z

17

Scala fields are private variables with a getter of the same name to preserve immutability.

public class JavaTest
{
  public static void main(String[] args)
  {
    int i = TestObject.field();
  }
}

answered Oct 17, 2011 at 1:05

dsg

13k21 gold badges72 silver badges113 bronze badges

Sign up to request clarification or add additional context in comments.

1 Answer 1