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Can a java file have more than one class?
What is the purpose of having more than one class in a Java file ? I am new to Java.
18 Answers
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Difference between numpy.array shape (R, 1) and (R,)
...For example, given a matrix M , if we want to do numpy.dot(M[:,0], numpy.ones((1, R))) where R is the number of rows (of course, the same issue also occurs column-wise). We will get matrices are not aligned error since M[:,0] is in shape (R,) but numpy.ones((1, R)) is in shape (1, R) ....
What does 'low in coupling and high in cohesion' mean
...is about making sure module doesn't do many things, it is meant to do only one particular thing".
– Lokesh
May 2 '17 at 9:49
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What is “the inverse side of the association” in a bidirectional JPA OneToMany/ManyToOne association
In the example section of the @OneToMany JPA annotation reference :
6 Answers
6
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Epoch vs Iteration when training neural networks
...
In the neural network terminology:
one epoch = one forward pass and one backward pass of all the training examples
batch size = the number of training examples in one forward/backward pass. The higher the batch size, the more memory space you'll need.
number o...
How many String objects will be created when using a plus sign?
...isingly, it depends.
If you do this in a method:
void Foo() {
String one = "1";
String two = "2";
String result = one + two + "34";
Console.Out.WriteLine(result);
}
then the compiler seems to emit the code using String.Concat as @Joachim answered (+1 to him btw).
If you define t...
Execute combine multiple Linux commands in one line
I am trying to merge multiple linux commands in one line to perform deployment operation.
For example
9 Answers
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Play sound on button click android
...he most important part in the code provided in the original post.
Button one = (Button) this.findViewById(R.id.button1);
final MediaPlayer mp = MediaPlayer.create(this, R.raw.soho);
one.setOnClickListener(new OnClickListener(){
public void onClick(View v) {
mp.start();
}
});
To ...
Design Patterns: Abstract Factory vs Factory Method
...d to be changed only the Simple Factory Class)
Factory Method
Contains one method to produce one type of product related to its type. (It is better than a Simple Factory because the type is deferred to a sub-class.)
Abstract Factory
Produces a Family of Types that are related. It is noticeab...
Python argparse: Make at least one argument required
...est='mode')
args = parser.parse_args()
if not args.mode:
parser.error("One of --process or --upload must be given")
Though, probably it would be a better idea to use subcommands instead.
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