Java Archives - Page 22 of 336

Java, Programming

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How do I tell Spring Boot which main class to use for the executable jar?

Execution default of goal org.springframework.boot:spring-boot-maven-plugin:1.0.1.RELEASE:repackage failed: Unable to find a single main class from the following candidates My project has more than one ...

May 31, 2022
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Java, Programming

IT Nursery

Converting a string to an integer on Android

How do I convert a string into an integer? I have a textbox I have the user enter a number into: EditText et ...

May 31, 2022
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Java, Programming

IT Nursery

How to print binary tree diagram in Java?

How can I print a binary tree in Java so that the output is like: 4 / \ 2 5 My node: public ...

May 31, 2022
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Java, Programming

IT Nursery

Unrecognized SSL message, plaintext connection? Exception

I have a java complied package to speak with the https server on net. Running the compilation gives the following exception: javax.net.ssl.SSLException: Unrecognized ...

May 31, 2022
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Java, Programming

IT Nursery

Regex Named Groups in Java

It is my understanding that the java.regex package does not have support for named groups (http://www.regular-expressions.info/named.html) so can anyone point me towards a ...

May 31, 2022
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Java, Programming

IT Nursery

com.jcraft.jsch.JSchException: UnknownHostKey

I’m trying to use Jsch to establish an SSH connection in Java. My code produces the following exception: com.jcraft.jsch.JSchException: UnknownHostKey: mywebsite.com. RSA key ...

May 31, 2022
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Java, Programming

IT Nursery

Can I set enum start value in Java?

I use the enum to make a few constants: enum ids {OPEN, CLOSE}; the OPEN value is zero, but I want it as ...

May 31, 2022
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Java, Programming

IT Nursery

Openssl is not recognized as an internal or external command

I wish to generate an application signature for my app which will later be integrated with Facebook. In one of Facebook’s tutorials, I ...

May 31, 2022
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Java, Programming

IT Nursery

How to convert a double to long without casting?

What is the best way to convert a double to a long without casting? For example: double d = 394.000; long l = ...

May 31, 2022
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Java, Programming

IT Nursery

Java code To convert byte to Hexadecimal

I have an array of bytes. I want each byte String of that array to be converted to its corresponding hexadecimal values. Is ...

May 31, 2022
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