Java Archives - Page 20 of 336

Java, Programming

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What is WEB-INF used for in a Java EE web application?

I’m working on a Java EE web application with the following source code directory structure: src/main/java <-- multiple packages containing Java classes src/test/java ...

May 31, 2022
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Java, Programming

IT Nursery

Should try…catch go inside or outside a loop?

I have a loop that looks something like this: for (int i = 0; i < max; i++) { String myString = ...; ...

May 31, 2022
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Java, Programming

IT Nursery

Synchronization vs Lock

java.util.concurrent API provides a class called as Lock, which would basically serialize the control in order to access the critical resource. It gives ...

May 31, 2022
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Java, Programming

IT Nursery

java.net.MalformedURLException: no protocol

I am getting Java exception like: java.net.MalformedURLException: no protocol My program is trying to parse an XML string by using: Document dom; DocumentBuilderFactory ...

May 31, 2022
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Java, Programming

IT Nursery

How to make a Java Generic method static?

The following is a snippet on how to make a java generic class to append a single item to an array. How can ...

May 31, 2022
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Java, Programming

IT Nursery

Check if a value exists in ArrayList

How can I check if a value that is written in scanner exists in an ArrayList? List<CurrentAccount> lista = new ArrayList<CurrentAccount>(); CurrentAccount conta1 ...

May 31, 2022
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Java, Programming

IT Nursery

How to set timeout in Retrofit library?

I am using Retrofit library in my app, and I’d like to set a timeout of 60 seconds. Does Retrofit have some way ...

May 31, 2022
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Java, Programming

IT Nursery

Get Android Device Name

How to get Android device name? I am using HTC desire. When I connected it via HTC Sync the software is displaying the ...

May 31, 2022
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Java, Programming

IT Nursery

Pick a random value from an enum?

If I have an enum like this: public enum Letter { A, B, C, //... } What is the best way to pick ...

May 31, 2022
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Java, Programming

IT Nursery

How do I monitor the computer’s CPU, memory, and disk usage in Java?

I would like to monitor the following system information in Java: Current CPU usage** (percent) Available memory* (free/total) Available disk space (free/total) *Note ...

May 31, 2022
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