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Results tagged with java
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user 19548
Java (not to be confused with JavaScript) is a class-based, object-oriented, strongly typed, reflective language and run-time environment (JRE). Java programs are compiled to bytecode and run in a virtual machine (JVM) enabling a "write once, run anywhere" (WORA) methodology.
1
vote
Accepted
Graph degree as solution for undirected graph paint
It is not. Consider a triangle graph which has tree nodes and three edges. All vertices has degree two but three colors are required to color it. Your function would fail for that input.
In fact, th …
- 1,372
4
votes
Accepted
Merge Sort in Java with Test cases
That is, the same names used by the
Arrays
class in the Java standard library:
data => a
comparator => c
start => fromIndex
stop => toIndex
I've never seen the center element in merge sort being referred … Inclusive start, exclusive end
It is better to use inclusive start indices and exclusive stop
indices, matching the convention established by
Arrays.sort
and many other array functions in the Java standard …
- 1,372
2
votes
Pong-Like Game. First game I ever made. advice needed
x = PaintSurface.getPaintSurfaceDimension().width - width;
you write:
x = Math.max(0, Math.min(x, PaintSurface.getPaintSurfaceDimension().width - width));
The idiom is so common that many Java …
- 1,372
1
vote
Find min sum for indices to match equation
There is lots of symmetry and short-circuiting you can exploit
here. Every loop-iteration is independent and duplicates are pointless
to test. E.g a = 1 and b = 2 gives the same result as a = 1 and
b …
- 1,372
2
votes
Accepted
Java RSA / AES-GCM encryption utility
Mixing Java NIO with old style IO is not nice. … Your code for writing
the keypair to file can be replaced with Java NIO calls:
byte[] encodedPrivateKey = keyPair.getPrivate().getEncoded();
byte[] privateKeyBytes = encrypt(encodedPrivateKey, password …
- 1,372
3
votes
Accepted
Java file analyzer byte-by-byte
Replace
try (FileInputStream fis = new FileInputStream(file)) {
with
try (InputStream fis = new BufferedInputStream(new FileInputStream(file))) {
See also Why is using BufferedInputStream to rea …
- 1,372