Java Archives - Page 335 of 336

String cannot be resolved to a type – Java RAD

My guess is you miss the JRE Runtime Library in your project. But this would cause all the java.* classes to generate this ...

April 1, 2022
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Class JavaLaunchHelper is implemented in two places

You can find all the details here: IDEA-170117 “objc: Class JavaLaunchHelper is implemented in both …” warning in Run consoles It’s the old ...

April 1, 2022
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What does Java option -Xmx stand for? [duplicate]

see here: Java Tool Doc, it says, -XmxnSpecify the maximum size, in bytes, of the memory allocation pool. This value must a multiple of ...

April 1, 2022
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JOptionPane Yes or No window

I am trying to create a message with a Yes or No button. Then a window will appear with a certain message that ...

April 1, 2022
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How to know if a given string is substring from another string in Java

April 1, 2022
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IntelliJ IDEA “The selected directory is not a valid home for JDK”

April 1, 2022
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Simple timeout in java

Can anyone guide me on how I can use a simple timeout in java? Basically in my project I’m executing a statement br.readLine(), ...

April 1, 2022
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Set value of hidden field in a form using jQuery’s “.val()” doesn’t work

:text will fail for a input with a type value of hidden. It’s also much more efficient to just use: $("#texens").val("tinkumaster"); ID attributes ...

April 1, 2022
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Spring Boot – Cannot determine embedded database driver class for database type NONE

You haven’t provided Spring Boot with enough information to auto-configure a DataSource. To do so, you’ll need to add some properties to application.properties ...

April 1, 2022
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Convert double to float in Java

Just cast your double to a float. Also notice that the primitive types can NOT store an infinite set of numbers:

April 1, 2022
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