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How to sort List of objects by some property
...Scores().get(0).compareTo(o1.getScores().get(0));
}
});
With Java 8 onwards, you can simply use lambda expression to represent Comparator instance.
Collections.sort(scores, (s1, s2) -> { /* compute and return int */ });
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How to increase heap size of an android application?
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@ per app does heap limit at java level and native is different? i.e example on s5 devcie 128mb java heap limit and native can take another128 mb?
– NitZRobotKoder
Dec 11 '17 at 16:01
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Eclipse: Files opened by multiple searches using same editor tab
...n using the "file search" function in eclipse to find a bit of text in a ".java" file, I may get a list of several search results. Let's say I double click on the file "A.java" which then opens A.java in a new editor tab. If I then use the "file search" function again to find some other bit of tex...
How can I pass a parameter to a Java Thread?
Can anyone suggest to me how I can pass a parameter to a thread?
18 Answers
18
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Correct idiom for managing multiple chained resources in try-with-resources block?
The Java 7 try-with-resources syntax (also known as ARM block ( Automatic Resource Management )) is nice, short and straightforward when using only one AutoCloseable resource. However, I am not sure what is the correct idiom when I need to declare multiple resources that are dependent on each ot...
How to save a BufferedImage as a File
I am using the imgscalr Java library to resize an image .
6 Answers
6
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Java String - See if a string contains only numbers and not letters
I have a string that I load throughout my application, and it changes from numbers to letters and such. I have a simple if statement to see if it contains letters or numbers but, something isn't quite working correctly. Here is a snippet.
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What is an EJB, and what does it do?
...t EJBs support both local and remote network access - including
via local java interface, transparent RMI, JMS async message and SOAP/REST web service,
saving from cut-and-paste jar dependencies with multiple (inconsistent?) deployments.
They are very useful for creating SOA services. When used for...
How to convert a String to CharSequence?
How to convert String to CharSequence in Java?
5 Answers
5
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Why can outer Java classes access inner class private members?
I observed that Outer classes can access inner classes private instance variables. How is this possible? Here is a sample code demonstrating the same:
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