final class Plus extends java.lang.Object implements Expr
private Expr
l
r
Plus(Expr l, Expr r)
int
eval()
java.lang.String
toString()
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
private final Expr l
private final Expr r
public Plus(Expr l, Expr r)
public int eval()
eval
Expr
public java.lang.String toString()
toString
java.lang.Object