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i editing vs 2010 sequence diagram , after saving , closing it, can no longer open it. following error. know how resolve this? "cannot load '{diagram path , name}': value cannot null. parameter name: roleplayer" the title of dialog "microsoft visual studio" this question answered on msdn visualization & modeling tools forum .

i have array, want divide smaller arrays of n size, , perform operation on each. current method of doing is implemented arraylists in java (any pseudocode do) (int = 1; <= math.floor((a.size() / n)); i++) { arraylist temp = subarray(a, ((i * n) - n), (i * n) - 1); // stuff temp } private arraylist<comparable> subarray(arraylist a, int start, int end) { arraylist toreturn = new arraylist(); (int = start; <= end; i++) { toreturn.add(a.get(i)); } return toreturn; } where list, n size of desired lists i believe way taking time when working considerably large lists (of 1 million in size) i'm trying figure out more efficient. you'll want makes use of list.sublist(int, int) views rather copying each sublist. easily, use guava 's lists.partition(list, int) method: list<foo> foos = ... (list...

i have java code set of point in input return set of graph's edge represent delaunay triangulation. i know strategy used this, if exist, name of algorithm used. in code graphedge contains 2 awt point , represent edge in triangulation, graphpoint extends awt point, , edges of final triangulation returned in treeset object. my purpose understand how method works: public treeset getedges(int n, int[] x, int[] y, int[] z) below complete source code of triangulation : import java.awt.point; import java.util.iterator; import java.util.treeset; public class delaunaytriangulation { int[][] adjmatrix; delaunaytriangulation(int size) { this.adjmatrix = new int[size][size]; } public int[][] getadj() { return this.adjmatrix; } public treeset getedges(int n, int[] x, int[] y, int[] z) { treeset result = new treeset(); if (n == 2) { this.adjmatrix[0][1] = 1; this.adjmatrix[1][0] = 1; result.add(new graphedg...

when preferred size of jpanel set if don't set explicitly? i have following code: private static class scrollablejpanel extends jpanel implements scrollable { @override public dimension getpreferredscrollableviewportsize() { return getpreferredsize(); } . . . } and code: mypanel = new scrollablejpanel(); // add bunch of controls panel. final jscrollpane scroll = new jscrollpane(mypanel); scroll.setautoscrolls(true); scroll.sethorizontalscrollbarpolicy( scrollpaneconstants.horizontal_scrollbar_never); however, preferred size of mypanel @ time getpreferredscrollableviewportsize() being called seems arbitrary value, (4225, 34), , prefsizeset = false. according java documentation , reasonable way define method. however, actual size of mypanel higher 34 pixels, view port way small. what doing wrong here? should set preferred size of mypanel explicitly? tried that, w...

i have test : test "should not allow access" :new assert_redirected_to new_user_session_url end i use devise authentication. i have 2 views each of actions: 1 normal, , 1 mobile devices, before i've used usual default view (sign_in.html.erb) - test pass, when i've added mobile view (sign_in.mobile.erb) i've got next fail message. expected response redirect http://test.host/users/sign_in redirect http://test.host/users/sign_in.mobile so client testing point of view - logic working fine, e.g. in case if user not authenticated redirected session new path (new_user_session_url). works mobile devices (mobile client redirected mobile view of sign in page), test fail reasons if client mobile device , controller redirect mobile view. my question how fix test ? i've tried : assert_redirected_to new_user_session_path assert_redirected_to :controller => "devise/session", :action => "new" but no success , same fai...

i've following code uses passed object , acts on after determining type. question if convert use generics, performance advantage since i'd still have determine type of t before act upon it? save ticks on boxing/unboxing? private void bindoptionfields(object obj, string selectedvalue, int datalanguageid) { string typ = obj.gettype().name; switch(typ.tolower()) { case "ratingscaleitem": setratingscale((common.ratingscaleitem)obj, datalanguageid, selectedvalue); break; case "taskstatus": text = ((taskstatus)obj).taskname; optionvalue = ((taskstatus)obj).stateid.tostring(); break; case "planlite": text = ((xyz.abc.planlite)obj).planname; optionvalue = ((xyz.abc.planlite)obj).id.tostring(); break; case "datarow": tex...

hey, try code opengl es 2 engine @ shader creation function glgetattriblocation returns -1 means the named attribute variable not active attribute in specified program object or name starts reserved prefix "gl_". but defined in shader , doesnt start gl_. whats wrong code? c++ code: glprogram = glcreateprogram(); glvertshader = glcreateshader(gl_vertex_shader); glfragshader = glcreateshader(gl_fragment_shader); glshadersource(glvertshader, 1, vertsrc, null); glshadersource(glfragshader, 1, fragsrc, null); glint ret; glcompileshader(glvertshader); glgetshaderiv(glvertshader, gl_compile_status, &ret); if(!ret) { ///error handling - stripped internet } glcompileshader(glfragshader); glgetshaderiv(glfragshader, gl_compile_status, &ret); if(!ret) { ///error handling - stripped internet } glattachshader(glprogram, glvertshader); glattachshader(glprogram, glfragshader); gllinkprogram(glprogram); glgetprogramiv(glprogram, gl_link_stat...