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Round a double to 2 decimal places [duplicate]
...em 48: "Avoid float and double if exact answers are required" in Effective Java (2nd ed) by Joshua Bloch
What Every Programmer Should Know About Floating-Point Arithmetic
If you wanted String formatting instead of (or in addition to) strictly rounding numbers, see the other answers.
Specifica...
spring boot default H2 jdbc connection (and H2 console)
...ing.jpa.database-platform=org.hibernate.dialect.H2Dialect
In Application.java (or some configuration):
@Bean
public ServletRegistrationBean h2servletRegistration() {
ServletRegistrationBean registration = new ServletRegistrationBean(new WebServlet());
registration.addUrlMappings("/console...
How to read and write excel file
I want to read and write an Excel file from Java with 3 columns and N rows, printing one string in each cell. Can anyone give me simple code snippet for this? Do I need to use any external lib or does Java have built-in support for it?
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How to get “their” changes in the middle of conflicting Git rebase?
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You want to use:
git checkout --ours foo/bar.java
git add foo/bar.java
If you rebase a branch feature_x against master (i.e. running git rebase master while on branch feature_x), during rebasing ours refers to master and theirs to feature_x.
As pointed out in the git...
Converting from Integer, to BigInteger
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@Mich, no. If it is an integer, Java will automatically expand it for you. (The OP says he has an Integer)
– jjnguy
Oct 7 '10 at 2:17
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WebView and HTML5
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-Find a properly encoded video
-When initializing the WebView, set the JavaScript, Plug-ins the WebViewClient and the WebChromeClient.
url = new String("http://broken-links.com/tests/video/");
mWebView = (WebView) findViewById(R.id.webview);
mWebView.setWebChromeClient(chromeClient);
mWebView...
How can I reference the value of a final static field in the class?
Using JavaDoc, how can I reference the value of a final static field in the class?
1 Answer
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How to programmatically take a screenshot on Android?
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Hi, I got a System.err : java.io.IOException: Error running exec(). Command: [su] Working Directory: null Environment: null , my device is android 5.0
– Eddy
Jun 23 '15 at 9:14
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POST unchecked HTML checkboxes
...many the other answers. If you're using PHP, you can then do away with the javascript dependency, because only the last value gets used.
– Ben
Sep 13 '13 at 17:40
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What is wrong with using goto? [duplicate]
...mming language, and use of GOTOs has been pretty much eliminated. In fact, Java, Scala, Ruby, and Python don't have a goto command at all.
C, C++ and Perl still do have a GOTO command, and there are situations (in C particularly) where a GOTO is useful, for example a break statement that exits mul...