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Why do I want to avoid non-default constructors in fragments?
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Bundles can carry serialized Java objects as well as Parcelable objects. Also, you should not pass a Context, because that information can be accessed via the fragment's getActivity() method.
– krakatoa
Feb 15 '13 a...
What do I return if the return type of a method is Void? (Not void!)
Due to the use of Generics in Java I ended up in having to implement a function having Void as return type:
6 Answers
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What is Dependency Injection and Inversion of Control in Spring Framework?
...l(IoC) Container:
This is common characteristic of frameworks, IoC manages java objects - from instantiation to destruction through its BeanFactory. - Java components that are instantiated by the IoC container are called beans, and the IoC container manages a bean's scope, lifecycle events, ...
How does Junit @Rule work?
... look at the source of github.com/junit-team/junit4/blob/master/src/main/java/org/… , the folder is created in the before() callback method and deleted in the after() callback method ...
– Pierluigi Vernetto
Dec 3 '17 at 9:30
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How to define custom exception class in Java, the easiest way?
...e the new class dialog in Eclipse you can just set the Superclass field to java.lang.Exception and check "Constructors from superclass" and it will generate the following:
package com.example.exception;
public class MyException extends Exception {
public MyException() {
// TODO Auto-g...
What does the “static” modifier after “import” mean?
...ourself from some typing.
I will elaborate my point with example.
import java.lang.Math;
class WithoutStaticImports {
public static void main(String [] args) {
System.out.println("round " + Math.round(1032.897));
System.out.println("min " + Math.min(60,102));
}
}
Same code, with static i...
Daylight saving time and time zone best practices [closed]
...le, Indian Standard Time is UTC+05:30, and Nepal uses UTC+05:45).
If using Java, use java.time for Java 8 and later.
Much of that java.time functionality is back-ported to Java 6 & 7 in the ThreeTen-Backport library.
Further adapted for early Android (< 26) in the ThreeTenABP library.
Th...
How can I pass a Bitmap object from one activity to another
...is not a best practice, if the bitmap object size is bigger, then you get "java.lang.SecurityException: Unable to find app for caller android.app.ApplicationThreadProxy......". the recommended way is like @slayton says, you have to save bitmap on external storage and pass just the URI.
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throw checked Exceptions from mocks with Mockito
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Check the Java API for List.
The get(int index) method is declared to throw only the IndexOutOfBoundException which extends RuntimeException.
You are trying to tell Mockito to throw an exception SomeException() that is not valid to be ...
Eclipse/Java code completion not working
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Try restoring the default options in 'Windows > Preferences > Java > Editor > Content Assist > Advanced'
An example of the kind of data you see in this preference screen, however not necessarily what you currently have.
(From Vadim in this blog post " Content Assist Duplica...