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Difference between float and decimal data type
...********************* 1. row ***************************
@a := (a/3): 33.333333333
@b := (b/3): 33.333333333333
@a + @a + @a: 99.999999999000000000000000000000
@b + @b + @b: 100
The decimal did exactly what's supposed to do on this cases, it
truncated the rest, thus losing the 1/3 part.
So fo...
ArithmeticException: “Non-terminating decimal expansion; no exact representable decimal result”
...ply a RoundingMode and a precision, then it will be able to convert (eg. 1.333333333-to-infinity to something like 1.3333 ... but you as the programmer need to tell it what precision you're 'happy with'.
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Cast a Double Variable to Decimal
...0) one would in some cases want to clip "excess" precision yielding 333333.333333333D, but in others cases one would want to retain it, yielding 333333.333333333313931D. Rather than simply saying "convert to decimal", code should specify how that conversion should be performed.
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Retain precision with double in Java
...
When you input a double number, for example, 33.33333333333333, the value you get is actually the closest representable double-precision value, which is exactly:
33.3333333333333285963817615993320941925048828125
Dividing that by 100 gives:
0.333333333333333285963817615...
Why not use Double or Float to represent currency?
...1/3. You could settle on a long sequence of 3's and a small exponent, like 333333333 * 10-10, but it is not accurate: if you multiply that by 3, you won't get 1.
However, for the purpose of counting money, at least for countries whose money is valued within an order of magnitude of the US dollar, ...
Optional Parameters with C++ Macros
...e multiple macros that you would need anyway [as per: Crazy Eddie]
#define XXX_0() <code for no arguments>
#define XXX_1(A) <code for one argument>
#define XXX_2(A,B) <code for two arguments>
#define XXX_3(A,B,C) ...
Difference between and
...beans of type A, B and C, with B and C being injected into A.
package com.xxx;
public class B {
public B() {
System.out.println("creating bean B: " + this);
}
}
package com.xxx;
public class C {
public C() {
System.out.println("creating bean C: " + this);
}
}
package com.yyy;
impo...
Linux scp 远程文件上传下载，指定端口 - 操作系统(内核) - 清泛网 - 专注C...
...端口linux-scp1、默认22端口上传、下载文件：scp test tgz root@xxx xxx xxx xxx: tmpscp root@xxx xxx xxx xxx: tmp test tgz 2、指定端口：scp -P8888 root@xxx xxx xxx xxx: tmp test tgz 1、默认22端口上传、下载文件：
scp test.tgz root@xxx.xxx.xxx.xxx:/tmp
scp root@xxx....
What is the meaning of #XXX in code comments?
...ODO and #FIXME are two other fix markers vim highlights but what does #XXX mean?
10 Answers
...
Link to the issue number on GitHub within a commit message
...
Just include #xxx in your commit message to reference an issue without closing it.
With new GitHub issues 2.0 you can use these synonyms to reference an issue and close it (in your commit message):
fix #xxx
fixes #xxx
fixed #xxx
close #...