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Are arrays passed by value or passed by reference in Java? [duplicate]
...reference will affect the original array..
But changing the reference to point to a new array will not change the existing reference in original method..
See this post..
Is Java "pass-by-reference" or "pass-by-value"?
See this working example: -
public static void changeContent(int[] arr) {
...
Swift how to sort array of custom objects by property value
...mStringConvertible, Comparable {
let fileName: String
let fileID: Int
var description: String { return "ImageFile with ID: \(fileID)" }
init(fileName: String, fileID: Int) {
self.fileName = fileName
self.fileID = fileID
}
static func ==(lhs: ImageFile, rhs:...
How to send password securely over HTTP?
...ser:password@your.domain.com/login (Chrome, for example will automatically convert it into Authorization header)
IMPORTANT:
As pointed out by @zaph in his comment below, sending sensitive info as GET query is not good idea as it will most likely end up in server logs.
...
What happens when there's insufficient memory to throw an OutOfMemoryError?
...ate static void test (OutOfMemoryError o) {
try {
for (int n = 1; true; n += n) {
int[] foo = new int[n];
}
} catch (OutOfMemoryError e) {
if (e == o)
System.out.println("Got the same OutOfMemoryError twice: " + e);
...
How to determine device screen size category (small, normal, large, xlarge) using code?
...playMetrics();
getWindowManager().getDefaultDisplay().getMetrics(metrics);
int density = metrics.densityDpi;
if (density == DisplayMetrics.DENSITY_HIGH) {
Toast.makeText(this, "DENSITY_HIGH... Density is " + String.valueOf(density), Toast.LENGTH_LONG).show();
}
else if (density == DisplayMetric...
How can I link to a specific glibc version?
...mbol versioning. If you are curious, the symbol versioning implementation introduced in glibc 2.1 is described here and is an extension of Sun's symbol versioning scheme described here.
One option is to statically link your binary. This is probably the easiest option.
You could also build your b...
How do I remove code duplication between similar const and non-const member functions?
...t's say I have the following class X where I want to return access to an internal member:
19 Answers
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Difference between partition key, composite key and clustering key in Cassandra?
...able stackoverflow_composite (
key_part_one text,
key_part_two int,
data text,
PRIMARY KEY(key_part_one, key_part_two)
);
In a situation of COMPOSITE primary key, the "first part" of the key is called PARTITION KEY (in this example key_part_one is the partition key)...
When should I use a struct instead of a class?
...
It logically represents a single value, similar to primitive types
(integer, double, and so on).
It has an instance size smaller than 16 bytes.
It is immutable.
It will not have to be boxed frequently.
share...
What is the difference between instanceof and Class.isAssignableFrom(…)?
...pes. isAssignableFrom() can be used with any class objects:
a instanceof int // syntax error
3 instanceof Foo // syntax error
int.class.isAssignableFrom(int.class) // true
See http://java.sun.com/javase/6/docs/api/java/lang/Class.html#isAssignableFrom(java.lang.Class).
...