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What is the standard exception to throw in Java for not supported/implemented operations?
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java.lang.UnsupportedOperationException
Thrown to indicate that the requested operation is not supported.
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Uncatchable ChuckNorrisException
Is it possible to construct a snippet of code in Java that would make a hypothetical java.lang.ChuckNorrisException uncatchable?
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Spark java.lang.OutOfMemoryError: Java heap space
...n google myself easier) The following is also indicative of this problem:
java.lang.OutOfMemoryError : GC overhead limit exceeded
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StringUtils.isBlank() vs String.isEmpty()
...("bob") = false
StringUtils.isEmpty(" bob ") = false
Warning: In java.lang.String.isBlank() and java.lang.String.isEmpty() work the same except they don't return true for null.
java.lang.String.isBlank() (since Java 11)
java.lang.String.isEmpty()
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What is the native keyword in Java for?
While playing this puzzle (It's a Java keyword trivia game), I came across the native keyword.
10 Answers
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How to convert List to int[] in Java? [duplicate]
This is similar to this question:
How to convert int[] to Integer[] in Java?
16 Answers
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Java Serializable Object to Byte Array
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If you use Java >= 7, you could improve the accepted solution using try with resources:
private byte[] convertToBytes(Object object) throws IOException {
try (ByteArrayOutputStream bos = new ByteArrayOutputStream();
Obj...
java.lang.UnsatisfiedLinkError: No implementation found for void or......
https://blog.csdn.net/sinat_31057219/article/details/116784189
https://developer.aliyun.com/article/240181
Catching java.lang.OutOfMemoryError?
Documentation for java.lang.Error says:
14 Answers
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What is a stack trace, and how can I use it to debug my application errors?
...ication. Let's have a look at the stack trace:
Exception in thread "main" java.lang.NullPointerException
at com.example.myproject.Book.getTitle(Book.java:16)
at com.example.myproject.Author.getBookTitles(Author.java:25)
at com.example.myproject.Bootstrap.main(Bootstrap.java:...