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What is @ModelAttribute in Spring MVC?
...llow access to the Person object in your View, since it gets automatically added to the Models by Spring.
See "Using @ModelAttribute".
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Are arrays passed by value or passed by reference in Java? [duplicate]
...his is NOT pass-by-reference. Real pass-by-reference involves passing the address of a variable. With real pass-by-reference, the called method can assign to its local variable, and this causes the variable in the caller to be updated.
But not in Java. In Java, the called method can update the...
How to multiply duration by integer?
To test concurrent goroutines, I added a line to a function to make it take a random time to return (up to one second)
5 An...
Sticky sidebar: stick to bottom when scrolling down, top when scrolling up
...t-size: 10px;
color: #333;
box-sizing: border-box;
}
.wrapper,
.header,
.main,
.footer {
padding: 10px;
position: relative;
}
.wrapper {
border: 1px solid #333;
background-color: #f5f5f5;
padding: 10px;
}
.header {
background-color: #6289AE;
margin-bottom: 10px;
...
How do you effectively model inheritance in a database?
... several of the columns will probably be sparse. A discriminator column is added which tells the system what type of row this is.
Given the classes above, you end up with this table:
table Person
------------
int id (PK)
int rowtype (0 = "Person", 1 = "Employee")
string firstname
string lastname
d...
How can I ensure that a division of integers is always rounded up?
...far, the moment you try to do a "clever" trick, odds are good that you've made a mistake. And when a flaw is found, changing the code to fix the flaw without considering whether the fix breaks something else is not a good problem-solving technique. So far we've had I think five different incorrect...
LaTeX Optional Arguments
...d to as #1 and #2 in the {<definition>}--nothing new so far.
But by adding a second optional argument to this \newcommand
(the [YYY]) the first argument (#1) of the newly defined
command \example is made optional with its default value being YYY.
Thus the usage of \example is either:
\...
Multiple inputs with same name through POST in php
...s: I have a form that allows the entry of an indefinite number of physical addresses along with other information. If I simply gave each of those fields the same name across several entries and submitted that data through post, would PHP be able to access it?
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Understanding generators in Python
I am reading the Python cookbook at the moment and am currently looking at generators. I'm finding it hard to get my head round.
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Looking for a good world map generation algorithm [closed]
... David JohnstoneDavid Johnstone
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