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How to use the toString method in Java?
...rintln("mystr.toString: " + mystr.toString());
output:- mystr.toString: [Ljava.lang.String;@13aaa14a
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How to set a Timer in Java?
...ss that.
Setting a timer
First you need to create a Timer (I'm using the java.util version here):
import java.util.Timer;
..
Timer timer = new Timer();
To run the task once you would do:
timer.schedule(new TimerTask() {
@Override
public void run() {
// Your database code here
}
},...
How can I initialise a static Map?
How would you initialise a static Map in Java?
42 Answers
42
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Get size of an Iterable in Java
I need to figure out the number of elements in an Iterable in Java.
I know I can do this:
10 Answers
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Is it possible to create a File object from InputStream
Is there any way to create a java.io.File object from an java.io.InputStream ?
7 Answers
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How should I use try-with-resources with JDBC?
...ing an additional wrapper class?
package com.naveen.research.sql;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
public abstract class PreparedStatementWrapper implements AutoCloseable {
protected PreparedStatement stat...
How do you specify a byte literal in Java?
...
You can use a byte literal in Java... sort of.
byte f = 0;
f = 0xa;
0xa (int literal) gets automatically cast to byte. It's not a real byte literal (see JLS & comments below), but if it quacks like a duck, I call it a duck.
What you can't ...
java.lang.ClassNotFoundException: org.springframework.web.context.ContextLoaderListener
...ployment Assembly".
Click the "Add..." button on the right margin.
Select "Java Build Path Entries" from the menu of Directive Type and click "Next".
Select "Maven Dependencies" from the Java Build Path Entries menu and click "Finish".
You should see "Maven Dependencies" added to the Web Deploymen...
Android Studio Google JAR file causing GC overhead limit exceeded error
... this to your android closure in your build.gradle file:
dexOptions {
javaMaxHeapSize "4g"
}
and see if that helps.
(idea courtesy of this answer from Scott Barta)
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Java “lambda expressions not supported at this language level”
I was testing out some new features of Java 8 and copied the example into my IDE (Eclipse originally, then IntelliJ) as shown here
...