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How to get the insert ID in JDBC?
...ord in a database (which is Microsoft SQL Server in my case) using JDBC in Java. At the same time, I want to obtain the insert ID. How can I achieve this using JDBC API?
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Finding all objects that have a given property inside a collection [duplicate]
...g memory reference locations, refer to: stackoverflow.com/questions/767372/java-string-equals-versus
– user785262
Jun 1 '12 at 20:14
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Why should Java ThreadLocal variables be static
I was reading the JavaDoc for Threadlocal here
7 Answers
7
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java.lang.IllegalStateException: The specified child already has a parent
I am using fragments, when I instantiate a fragment the first time it it. but the second time I got this exception. I couldn't find the line where I got the error?
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Why no generics in Go?
...primitive) object. So it's very similar to a container holding Objects in Java.
– poolie
Jul 30 '12 at 7:55
4
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Using two values for one switch case statement
... SwitchFallThrough {
public static void main(String[] args) {
java.util.ArrayList<String> futureMonths =
new java.util.ArrayList<String>();
int month = 8;
switch (month) {
case 1: futureMonths.add("January");
case 2: fu...
builder for HashMap
Guava provides us with great factory methods for Java types, such as Maps.newHashMap() .
15 Answers
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What is Gradle in Android Studio?
...s the picture. The build system automatically takes all the source files (.java or .xml), then applies the appropriate tool (e.g. takes java class files and converts them to dex files), and groups all of them into one compressed file, our beloved APK.
This build system uses some conventions: an exa...
The case against checked exceptions
... fact, I suspect Goslings motivation for not putting operator overrides in Java comes from a similar argument - they confuse the programmer because they are often abused.
But in the end, I find it a bogus argument of Hejlsberg's and possibly a post-hoc one created to explain the lack rather than a ...
SparseArray vs HashMap
...ted on heap by JVM.
They may vary depending on the specific JVM used.
The java.lang.instrument package contains some helpful methods for advanced operations like checking the size of an object with getObjectSize(Object objectToSize).
Extra info is available from the official Oracle documentation....