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I'm building a service where users can upload images. I want to prevent users from uploading files bigger than 5mb. Right now I create a 'signed url' for cloud storage user PUT and GET requests. Is there any way I can limit the size of a user upload? I don't want users to start uploading extremely large files by mistake or with malicious intent. Kamran There are three ways to control access to Google Cloud Storage buckets and objects: Access Control Lists (ACLs) , which provide a way to specify read or write access for specified Google accounts and groups. Signed URLs (Query String

I have created an OptionMenu from Tkinter with a columnspan of 2. However, the dropdown list/menu does not match the width, so it does not look good. Any idea on how to match their width? self.widgetVar = StringVar(self.top) choices = ['', 'wire', 'register'] typeOption = OptionMenu(self.top, self.widgetVar, *choices) typeOption.grid(column = 0, columnspan = 2, row = 0, sticky = 'NSWE', padx = 5, pady = 5) There is no way to change the width of the dropdown. You might want to consider the ttk.Combobox widget. It has a different look that might be what you're looking for. One idea is to pad the

Sometimes I notice the Android emulator starts with a very small font size. This seems to happen randomly. Other times it has a normal font size. I use ADT 10.0.1. Do you know what is the problem? This happens very often, and although I'm not sure about the exact reason behind this, it seems that somehow the wrong density was detected for this and resources for a lower dpi is loaded inside a higher dpi emulator. That's why everything is smaller, but the layout works properly and aligns things at their own places. And you're right: when this happens, network doesn't work in emulator! These two

I am using Swing and AWT (for the listeners) to make a small program. I have a problem concerning getting the size of my JPanel (the class named Chess). My Layout: public class Main extends JFrame implements MouseListener, ActionListener{ Chess chessPanel = new Chess (); JButton newGameButton = new JButton ("New Game"); JButton loadGameButton = new JButton ("Load Game"); JButton saveGameButton = new JButton ("Save Game"); JButton exitButton = new JButton ("Exit"); public static void main (String [] args) { new Main(); } Main () { super ("Chess"); Dimension dim = Toolkit.getDefaultToolkit()

I've tried to search for an answer to this question, but never managed to find any. What is the standard ratio for allocating size to the Java GC spaces when I define a maximum heap size? That is: if I start my JVM with, say 4Gb of heap, how much is allocated to the Eden? How much to survivors? How much to tenured? Also, does that ratio change for different VM vendors? Thanks in advance This is JVM-specific. On Oracle's JVMs, you can find out the heap sizes by using -XX:+PrintCommandLineFlags -XX:+PrintGCDetails : $ java -XX:+PrintCommandLineFlags -XX:+PrintGCDetails -version -XX

Hi guys just wondering if u can help me modify this script that ive been playing around with, i cant get it to accept wildcard charcters '*' @echo off setLocal EnableDelayedExpansion set /a value=0 set /a sum=0 FOR /R %1 %%I IN (*) DO ( set /a value=%%~zI/1024 set /a sum=!sum!+!value! ) @echo Size is: !sum! k Its in a batch file called dirsize and is called like so dirsize c:\folder I want it to check folder sizes for me, this one here is an example, the cache in firefox dirsize C:\users\%username%\AppData\Local\Mozilla\Firefox\*.default\Cache Returns the value 0 But if I go dirsize C:\users\

I've tried to use this and it doesn't work singleplayerButton.setBounds(20, 20, 200, 100); I dont know why though, can anybody help me out with this? My full page code is here package gmine; import java.awt.*; import java.awt.event.*; import javax.swing.*; public class gmine implements ActionListener { JFrame interfaceFrame; JButton singleplayerButton, multiplayerButton, optionsButton, quitButton; public gmine() { JFrame.setDefaultLookAndFeelDecorated(false); interfaceFrame = new JFrame("G-Mine B0.4"); interfaceFrame.setSize(800,600); interfaceFrame.setLayout(new GridLayout(9,1, 20, 15));

I got my own custom font working in Java, but I have one problem, the font size seems to be staying at 1. I tried font.deriveFont(20.0f); at my initialize method, but, it didn't resize. try { font = Font.createFont(Font.TRUETYPE_FONT, new File("D:/StanJump/mailrays.ttf")); font.deriveFont(20.0f); } catch (Exception ex) {} This is my code to create the font and try to change the size, but this didn't work. Any help on making it work, please? deriveFont returns a reference to a new font instance. Thus you need to assign it back to font, e.g. font = font.deriveFont(20.0f); 来源： https:/

When run test file in netbean. all dependency and resource are right, but it raise up java.lang.OutOfMemoryError: Java heap space at LUX_API_ArticleTest.testComputeEolObsolesceneRisk(LUX_API_ArticleTest.java:505) solution1: change netbean conf file , increase start heap size and maximum heap size. C:\Program Files\netbeans\etc\netbean.conf –J-Xmx64m maximum heap size -J-Xms64m start heap size Solution2: modify maven mvn.bat configuration file in bin directory of maven home set MAVEN_OPTS=-Xms256m -Xmx768m -XX:PermSize=128m -XX:MaxPermSize=256M 来源： https://www.cnblogs.com/daniel123/p/11925443