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How to check type of variable in Java?
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Java is a statically typed language, so the compiler does most of this checking for you. Once you declare a variable to be a certain type, the compiler will ensure that it is only ever assigned values of that type (or values...
Convert Iterator to ArrayList
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In Java 8, you can use the new forEachRemaining method that's been added to the Iterator interface:
List<Element> list = new ArrayList<>();
iterator.forEachRemaining(list::add);
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Does using final for variables in Java improve garbage collection?
...leagues and me have a discussion about the usage of the final keyword in Java to improve the garbage collection.
15 Answe...
Java 8 Streams - collect vs reduce
...sing an Integer constructor (new Integer(6)), which is deprecated in later Java versions.
– MC Emperor
Jun 13 '19 at 10:54
1
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How do you create a REST client for Java? [closed]
...h JSR 311 and its implementations we have a powerful standard for exposing Java objects via REST. However on the client side there seems to be something missing that is comparable to Apache Axis for SOAP - something that hides the web service and marshals the data transparently back to Java objects....
What is the maximum depth of the java call stack?
...at this is tail recursive and shouldn't ever overflow? Edit: Sorry. In Java it crashed at 8027; in Scala it got up to 8594755 before I got bored.
– arya
Feb 15 '15 at 2:47
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How to change font size in Eclipse for Java text editors?
...erences
Set the font size, General → Appearance → Colors and Fonts → Java → Java Editor Text Font).
Save the preferences.
Check that you do not have per-project preferences. These will override the top-level preferences.
Eclipse v4.2 (Juno) note
Per comment below, this has moved to the Ecl...
H2 in-memory database. Table not found
...ckage com.gigaspaces.compass;
import org.testng.annotations.Test;
import java.sql.*;
public class H2Test {
@Test
public void testDatabaseNoMem() throws SQLException {
testDatabase("jdbc:h2:test");
}
@Test
public void testDatabaseMem() throws SQLException {
testDatabase("jdbc:h2:mem:test")...
How to implement the Java comparable interface?
...posed to equals() which return false on such scenario.
Read more: http://javarevisited.blogspot.com/2011/11/how-to-override-compareto-method-in.html#ixzz4B4EMGha3
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How to implement infinity in Java?
Does Java have anything to represent infinity for every numerical data type? How is it implemented such that I can do mathematical operations with it?
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