Using otk java to define element and how to use it,

1.use otk java to define element,and how to do use it,please give some demo

2.for exemple 

Elements elements = Elements.create();
 //PRO_E_FEATURE_TREE
 Element elem_0_0 = wfcElementTree.Element_Create(wfcElemIds.PRO_E_FEATURE_TREE, null, 0);
 elements.append(elem_0_0);
 //PRO_E_FEATURE_FORM
 Element elem_1_2 = wfcElementTree.Element_Create(wfcElemIds.PRO_E_FEATURE_FORM, pfcArgument.CreateIntArgValue(1), 1);
 elements.append(elem_1_2);
 //PRO_E_EXT_SURF_CUT_SOLID_TYPE
 Element elem_1_4 = wfcElementTree.Element_Create(wfcElemIds.PRO_E_EXT_SURF_CUT_SOLID_TYPE, pfcArgument.CreateIntArgValue(917), 1);
 elements.append(elem_1_4);


 //PRO_E_STD_EXT_DEPTH
 Element elem_1_6 = wfcElementTree.Element_Create(wfcElemIds.PRO_E_STD_EXT_DEPTH, null, 1);
 elements.append(elem_1_6);
 //PRO_E_EXT_DEPTH_FROM
 Element elem_2_0 = wfcElementTree.Element_Create(wfcElemIds.PRO_E_EXT_DEPTH_FROM, null, 2);
 elements.append(elem_2_0);
 //PRO_E_EXT_DEPTH_FROM_TYPE
 Element elem_3_0 = wfcElementTree.Element_Create(wfcElemIds.PRO_E_EXT_DEPTH_FROM_TYPE, pfcArgument.CreateIntArgValue(128), 3);
 elements.append(elem_3_0);
 //PRO_E_EXT_DEPTH_FROM_VALUE
 Element elem_3_1 = wfcElementTree.Element_Create(wfcElemIds.PRO_E_EXT_DEPTH_FROM_VALUE, pfcArgument.CreateDoubleArgValue(1), 3);
 elements.append(elem_3_1);
 //PRO_E_EXT_DEPTH_TO
 Element elem_2_1 = wfcElementTree.Element_Create(wfcElemIds.PRO_E_EXT_DEPTH_TO, null, 2);
 elements.append(elem_2_1);
// //PRO_E_EXT_DEPTH_TO_TYPE
 Element elem_3_2 = wfcElementTree.Element_Create(wfcElemIds.PRO_E_EXT_DEPTH_TO_TYPE, pfcArgument.CreateIntArgValue(268435456), 3);
 elements.append(elem_3_2);
 //PRO_E_STD_SECTION
 Element elem_1_7 = wfcElementTree.Element_Create(wfcElemIds.PRO_E_STD_SECTION, null, 1);
 elements.append(elem_1_7);
 //PRO_E_STD_SEC_SETUP_PLANE
 Element elem_2_2 = wfcElementTree.Element_Create(wfcElemIds.PRO_E_STD_SEC_SETUP_PLANE, null, 2);
 elements.append(elem_2_2);

 //PRO_E_STD_SEC_PLANE
 Element elem_3_3 = wfcElementTree.Element_Create(wfcElemIds.PRO_E_STD_SEC_PLANE, pfcArgument.CreateSelectionArgValue(dirSels1), 3);
 elements.append(elem_3_3);

Point2D A = wfcSession.CreatePoint2D(90.00,90.00);
 Point2D B = wfcSession.CreatePoint2D(90.00,-90.00);
 Point2D C = wfcSession.CreatePoint2D(-90.00,-90.00);
 Point2D D = wfcSession.CreatePoint2D(-90.00,90.00);
 Point2D E = wfcSession.CreatePoint2D(90.00,90.00);
point2Ds.set(0, A); point2Ds.set(1, B); point2Ds.set(2, C); point2Ds.set(3, D); point2Ds.set(4, E);
SectionEntityPolyline rectangle = wfcSection.SectionEntityPolyline_Create(point2Ds);
SectionEntity line = (SectionEntity)rectangle;
sketch.AddEntity(line); 

 3. can't  drawing 3D  rectangle

4.is anyone can solve it  ，and  supply  a demo