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Bad class file magic or version
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my JAVA_HOME variable changed to Java 1.8 and I got this error message when compiling a pure java module as a dependency of my android project.
build.gradle of the java module
apply plugin: 'java'
Solution #1: Quick an dirty...
How to set time zone of a java.util.Date?
I have parsed a java.util.Date from a String but it is setting the local time zone as the time zone of the date object.
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javax vs java package
What's the rationale behind the javax package? What goes into java and what into javax?
7 Answers
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How to get the current time in milliseconds from C in Linux?
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98
This can be achieved using the POSIX clock_gettime function.
In the current version of POSIX, ...
How to forward declare a C++ template class?
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I haven't checked the standards, but this works on clang/gcc with -std=c++98 up to -std=c++17, so if it's not officially a standard then it looks to be unofficially so.
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代码块超过1.2w编译apk报错问题 - App Inventor 2 中文网 - 清泛IT社区，为创新赋能！
...午 com.google.appengine.tools.development.ApiProxyLocalImpl log
严重: javax.servlet.ServletContext log: Exception while dispatching incoming RPC call
com.google.gwt.user.server.rpc.UnexpectedException: Service method 'public abstract long com.google.appinventor.shared.rpc.project.ProjectService.s...
How to subtract X day from a Date object in Java?
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Java 8 and later
With Java 8's date time API change, Use LocalDate
LocalDate date = LocalDate.now().minusDays(300);
Similarly you can have
LocalDate date = someLocalDateInstance.minusDays(300);
Refer to https://stackov...
Comparing strings with == which are declared final in Java
I have a simple question about strings in Java. The following segment of simple code just concatenates two strings and then compares them with == .
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How to get the current time in YYYY-MM-DD HH:MI:Sec.Millisecond format in Java?
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@NickG Where is this toString(String format) method? The java.util.Date doesn't seem to have it. Are you referring to the Joda Time API? But one possible benefit is reuse of the same formatter object. Another is you don't have to add an API - Date class is a standard Java library c...
Declaring variables inside or outside of a loop
...this does not apply to your example, due to the immutability of strings in java: a new instance of str will always be created in the beginning of your loop and it will have to be thrown away at the end of it, so there is no possibility to optimize there.
EDIT: (injecting my comment below in the ans...