Adds better support for nested parenthesis. See issue #2.

java2python/compiler/visitor.py

@@ -774,6 +774,19 @@ def acceptMethodCall(self, node, memo):
             arg.left.walk(child, memo)
             arg.right = arg = expr(parent=self)
 
+    skipParensParents = (
+        tokens.IF,
+        tokens.WHILE,
+        tokens.SWITCH,
+        tokens.SYNCHRONIZED,
+        )
+
+    def acceptParentesizedExpr(self, node, memo):
+        if node.parent.type not in self.skipParensParents:
+            right = self.pushRight()
+            right.fs = '(' + FS.lr + ')'
+            return right
+        return self
 
     def acceptThisConstructorCall(self, node, memo):
         """ Accept and process a 'this(...)' constructor call. """

test/Expr2.java

@@ -0,0 +1,11 @@
+class Expr2 {
+    public static void main(String[] args) {
+	int a = 1;
+        int b = 2;
+        int c = 3;
+        int radius = 4;
+        int y = (radius*radius*a*(a + radius)*radius*b*b) / (c*c+a*a+b*b);
+        System.out.println(y);
+
+    }
+}