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Multiple queries executed in java in single statement
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Create a procedure with one or more select, and DML queries.
Call it from java using CallableStatement.
You can capture multiple ResultSets executed in procedure.
DML results can't be captured but can issue another select
to find how the rows are affected in the table.
Sample table and procedu...
How to list only the file names that changed between two commits?
...o one has mentioned the switch --stat:
$ git diff --stat HEAD~5 HEAD
.../java/org/apache/calcite/rex/RexSimplify.java | 50 +++++++++++++++++-----
.../apache/calcite/sql/fun/SqlTrimFunction.java | 2 +-
.../apache/calcite/sql2rel/SqlToRelConverter.java | 16 +++++++
.../org/apache/calcite/u...
Java, Classpath, Classloading => Multiple Versions of the same jar/project
... that specific classloader tries to resolve a class name.
According to the java language specification, there is not a uniqueness constraint for a class binary name, but as far as I can see, it should be unique for each classloader.
I can figure out a way to load two classes with the same binary n...
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How to exclude certain directories/files from git grep search
...if you want to search for foobar in every file except for those matching *.java you can do:
git grep foobar -- './*' ':(exclude)*.java'
Or using the ! "short form" for exclude:
git grep foobar -- './*' ':!*.java'
Note that in git versions up to v2.12, when using an exclude pathspec, you must h...
How to change package name of an Android Application
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I don't think the original questioner needed to change Java package names too. Marc's should be the accepted answer.
– mpellegr
Aug 14 '13 at 21:48
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Must qualify the allocation with an enclosing instance of type GeoLocation
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Do this Structure:
FILE GeoLocation.java
public class GeoLocation {
public static void main(String[] args) throws InterruptedException {
int size = 10;
// create thread pool with given size
ExecutorService service = Executors.newF...
How to run JUnit test cases from the command line
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For JUnit 5.x it's:
java -jar junit-platform-console-standalone-<version>.jar <Options>
Find a brief summary at https://stackoverflow.com/a/52373592/1431016 and full details at https://junit.org/junit5/docs/current/user-guide/#runn...
Boolean vs boolean in Java
There are discussions around Integer vs int in Java. The default value of the former is null while in the latter it's 0 . How about Boolean vs boolean ?
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Kotlin Ternary Conditional Operator
...c
The distinction between expression and statement is important here. In Java/C#/JavaScript, if forms a statement, meaning that it does not resolve to a value. More concretely, you can't assign it to a variable.
// Valid Kotlin, but invalid Java/C#/JavaScript
var v = if (a) b else c
If you're c...