Posts by User1999 • 864 points
91 posts
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viewsQ: Returning Array[] with Obsevable
I’m developing an Angular 2 application and in my service I’m returning one Observable<Pessoa[]> but when returning http with my get it runs the following error. Type…
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answer284
viewsQ: Optional.ofNullable with ifPresent
If the property ano is null but the model and year are filled, will save the car data in the repository ? public Class Carro { int ano; String modelo; int valor; } public void carro(final Carro…
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answer410
viewsQ: I can’t run script in the STS plugin in Eclipse
I added the STS plugin in the eclipse to create Spring-boot java projects, but when running the project it appears this error. Erro: Não foi possível localizar nem carregar a classe principal…
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answers97
viewsQ: Illegal use of <when>-style tag without <choose> as its direct Parent
I am developing a web application using jsp and Servlet page and I would like to show the data of my Servlet in two repeat structures one with the produots and the other with the plots but this…
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answer174
viewsQ: I cannot register data using JAVA Rest webservice
When registering data in my database using webservice the following error occurs. Sending 'POST' request to URL : http://localhost:8080/FazendaWS/webresources/fazenda/Usuario/inserir Post parameters…
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answers323
viewsQ: Sub-menu some when taking Javascript mouse
I’m developing a web application and when I hover over Sign in/Register it shows me a submenu with some links, but when I go to one of the submenu links,the submenu disappears, how can I solve this…
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answer948
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answer68
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viewsQ: Background color did not quit when clicking the CSS close button
I am developing a web application using Html,CSS,Jquery, and every time the page is loaded a modal appears with an image. But when I click the close icon the image comes out but the background color…
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answer350
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answer177
viewsQ: Edit search field with CSS icon
I am developing a web application and would like to format my search field like this. With icon inside and a placeholder written Search product Look at my search ground. With the round edges and…
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answer3115
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answers429
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answer1329
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answer146
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answer442
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answer96
viewsQ: Get sales average for a given month
I would like to take the average sales of the month by product description and not by date with day, month and year, but I don’t know how to get. SELECT AVG(vend_qtde) AS qtde_vendas from tb_vendas…
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answers138
viewsQ: Change menu with CSS
I am developing an application where I would like when scrolling the page bar until half the page a floating menu appears that is fixed at the top of the page but I do not know how to do. Regular…
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answer734
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viewsQ: Validation of fields and data in table does not work
I want to validate the fields if they are properly filled and check if the sum of the fields is greater than 10 and show the data in the table but none of this is happening. If I leave the fields…
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answer146
viewsQ: Display Array Data in Jquery table
I am developing an application where calculates the average that I validate the fields if they are properly filled and if the fields are filled and the sum of the notes is less than 10 it passes the…
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answers416
viewsA: Upload files and data SERVLET
You take inputText and file data by name, using the request.getParameter(""); quotation marks with parentheses the input name text Example: protected void doPost(HttpServletRequest request,…
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answer54
viewsQ: Link does not send parameters and redirects to Servlet
I put on my index page where I have three links one with T-shirts, Bermuda and Pants on href I put so that when clicked on the link it was redirected to Servlet and sent the parameters according to…
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answer394
viewsQ: Resultset is not positioned correctly, you may need to call next
I am developing a web application using JSP and Servlet and that registers the product data in the database and present the data in a table, but when trying to see the image registered by the…
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answer127
viewsQ: Does not return the amount of records from the Postgresql database
I would like to know the amount of records in my database, but does not return the amount. Look at the records in my database SQL command Select count(*) as contaRegistros from tb_produtos where…
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answers79
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answer590
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answer100
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answer191
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viewsQ: Run css when loading Javascript CSS page
I am developing a web application and would like to take the edge to the page loading, but it presents following error. Uncaught TypeError: Cannot set property 'border' of undefined JS…
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answers943
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viewsQ: I cannot Put background-color and Outline
I am developing a web application and I have the following problems: I can’t fill in the blank space above the title "Sort Search" using the background-color applied to it. I can’t get a line…
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answer367
viewsQ: Bootstrap menu dropdown items does not work
I am developing a web application and I put the bootstrap menu in my application but when clicking on the icon <b class="caret"></b> dropdown-menu items do not appear. Menu by clicking…
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answers969
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viewsQ: Bootstrap dropdown menu does not work
I am developing a web application and I am using the dropdown menu of bootstrap but it does not work My <head></head> <head> <meta http-equiv="Content-Type" content="text/html;…
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answer353
viewsQ: No effect works CSS
I am developing a web application and I would like to move the mouse the icons change color and not show that line under the icons but the houver doesn’t work. HTML <div class="header-fixed">…
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answer133
viewsQ: CSS misaligned menu items
I am developing a web application and developed a menu with some icons but when decreasing the width of the page the icons are misaligned and this is my menu but by decreasing the page width this…
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answer957
viewsQ: Change bootstrap menu according to page width
I am developing a web application and put in my application the bootstrap menu would like when the application reaches the maximum width of max-width: 770px the menu is the same as the menu that is…
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answer160
viewsQ: Misaligned image when page width decreases
This is the resolution of my image in normal page width But by decreasing the page width the image looks like this. I would like the image to be the same size as the 1 small image HTML <div…
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answer202
viewsQ: I can’t handle the css from the Bootstrap Menu
I’m developing a web application and I put a bootstrap menu but I’m not able to touch his css, I wish he had this look. UPDATE But look at him go HTML <div class="body-wrap" > <div…
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answer223
viewsQ: Bootstrap menu does not work
I’m developing a web application and I put it in the bootstrap menu link Menu in normal page width but by decreasing the page width the menu does not look like this. Stay like this HTML <div…
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answer94
viewsQ: Image cut when decreasing page width
I am developing a web application in jsp and Servlet and put an image in a bootstrap column <div class="col-11"></div> so I put the image in the center of the screen using themargin-left…
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answer1284
viewsQ: Show the number of rows and columns Javascript
I want the user to enter the row and column quantity of a table and present the respective values entered in the table. But typing the number of rows and columns at the prompt does not display the…
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answers452
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viewsQ: I can’t add value in Array
I want to add the name typed at the prompt in an array and displays the names in a table but when adding it displays the null value in the table. var nomes=[]; var indice=[]; var i=1;…