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Occurrences of substring in a string
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The last line was creating a problem. lastIndex would never be at -1, so there would be an infinite loop. This can be fixed by moving the last line of code into the if block.
String str = "helloslkhellodjladfjhello";
String findStr = "hello";
int lastIndex = 0;
int count = 0;
while(lastInd...
How do I find duplicate values in a table in Oracle?
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13 Answers
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Count(*) vs Count(1) - SQL Server
Just wondering if any of you people use Count(1) over Count(*) and if there is a noticeable difference in performance or if this is just a legacy habit that has been brought forward from days gone past?
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set DateTime to start of month
...var now = DateTime.Now;
var startOfMonth = new DateTime(now.Year,now.Month,1);
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Pandas DataFrame Groupby two columns and get counts
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126
Followed by @Andy's answer, you can do following to solve your second question:
In [56]: df.g...
Android Layout with ListView and Buttons
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137
I think this is what you are looking for.
<?xml version="1.0" encoding="utf-8"?>
<Re...
Printing 1 to 1000 without loop or conditionals
Task : Print numbers from 1 to 1000 without using any loop or conditional statements. Don't just write the printf() or cout statement 1000 times.
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How to split csv whose columns may contain ,
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184
Use the Microsoft.VisualBasic.FileIO.TextFieldParser class. This will handle parsing a delimit...
Java 8 stream reverse order
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81
For the specific question of generating a reverse IntStream, try something like this:
static In...