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Getting the array length of a 2D array in Java
... };
System.out.println(foo.length); //2
System.out.println(foo[0].length); //3
System.out.println(foo[1].length); //4
}
Column lengths differ per row. If you're backing some data by a fixed size 2D array, then provide getters to the fixed values in a wrapper class.
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Why does ('0' ? 'a' : 'b') behave different than ('0' == true ? 'a' : 'b') [duplicate]
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208
+500
First, ...
C++常用排序算法汇总 - C/C++ - 清泛网 - 专注C/C++及内核技术
...小到大
*/
void Select_Sort1(int *arr,int len)
{
int i,j;
for(i=0;i<len;i++)
for(j=i+1;j<len;j++)
if(arr[i] > arr[j])
{
int exchange = arr[i];
arr[i] = arr[j];
arr[j] = exchange;
}
}
/*
第二种形式的选择排序，减少了元素互换的操作
选...
How can I repeat a character in Bash?
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410
You can use:
printf '=%.0s' {1..100}
How this works:
Bash expands {1..100} so the command be...
How can I confirm a database is Oracle & what version it is using SQL?
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10 Answers
10
Active
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Add a common Legend for combined ggplots
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108
Update 2015-Feb
See Steven's answer below
df1 <- read.table(text="group x y
gro...
How to plot two histograms together in R?
...gle numeric column which lists the length of all measured carrots (total: 100k carrots) and cucumbers (total: 50k cucumbers).
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Convert an image to grayscale in HTML/CSS
.../* Disable grayscale on hover */
img:hover {
-webkit-filter: grayscale(0);
filter: none;
}
<img src="http://lorempixel.com/400/200/">
What about Internet Explorer 10?
You can use a polyfill like gray.
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how to convert array values from string to int?
... |
edited Apr 23 '19 at 10:46
Rahul
16.8k77 gold badges3434 silver badges5353 bronze badges
answered Ma...
How can I add a box-shadow on one side of an element?
...the box-shadow rule:
.myDiv
{
border: 1px solid #333;
width: 100px;
height: 100px;
box-shadow: 10px 0 5px -2px #888;
}
<div class="myDiv"></div>
The fourth property there -2px is the shadow spread, you can use it to change the spread of the shadow, making it a...