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In Java, how do I call a base class's method from the overriding method in a derived class?
...
class test
{
void message()
{
System.out.println("super class");
}
}
class demo extends test
{
int z;
demo(int y)
{
super.message();
z=y;
System.out.println("re:"+z);
}
}
class free{
public static void main(String ar[])...
Java split() method strips empty strings at the end? [duplicate]
...er is an empty space character " " ? Eg: String s = "a "; public static int lengthOfLastWord(String s) { int l = 0; for(String eachWord : s.split("\\s+", -1)){ if(!eachWord.equals(" ")){ l = eachWord.length(); System.out.println("'" + eachWord + "'"); ...
“Parameter” vs “Argument” [duplicate]
...sion used when calling the method.
Consider the following code:
void Foo(int i, float f)
{
// Do things
}
void Bar()
{
int anInt = 1;
Foo(anInt, 2.0);
}
Here i and f are the parameters, and anInt and 2.0 are the arguments.
...
Create boolean column in MySQL with false as default value?
... mybool boolean not null default 0
);
FYI: boolean is an alias for tinyint(1).
Here is the proof:
mysql> create table mytable (
-> mybool boolean not null default 0
-> );
Query OK, 0 rows affected (0.35 sec)
mysql> insert into mytable () values ();
Query OK, 1...
How to initialize array to 0 in C?
... Please refer to: The initialized 0 is not a character. it is a integer.
– Yonggoo Noh
May 4 '16 at 4:43
...
Order a List (C#) by many fields? [duplicate]
...'t have to be IComparable
aListOfObjects.Sort((x, y) =>
{
int result = x.A.CompareTo(y.A);
return result != 0 ? result : x.B.CompareTo(y.B);
});
share
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improve this answ...
What does `unsigned` in MySQL mean and when to use it?
...
MySQL says:
All integer types can have an optional
(nonstandard) attribute UNSIGNED.
Unsigned type can be used to permit
only nonnegative numbers in a column
or when you need a larger upper
numeric range for the column. For
examp...
Compare two objects and find the differences [duplicate]
...e class to compare against
class SomeCustomClass
{
public int x = 12;
public int y = 13;
}
AND THE MEAT AND POTATOES
using System.Collections.Generic;
using System.Reflection;
static class extentions
{
public static List<Variance> DetailedCompare<T>(t...
Extract every nth element of a vector
...
It is better to use seq.int(1L, length(a), 6L), at least for long vectors
– Wojciech Sobala
Mar 8 '11 at 20:45
1
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PHP prepend leading zero before single digit number, on-the-fly [duplicate]
...
You can use sprintf: http://php.net/manual/en/function.sprintf.php
<?php
$num = 4;
$num_padded = sprintf("%02d", $num);
echo $num_padded; // returns 04
?>
It will only add the zero if it's less than the required number of character...