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Import CSV to SQLite
...sqlite> create table foo(a, b);
sqlite> .mode csv
sqlite> .import test.csv foo
The first command creates the column names for the table. However, if you want the column names inherited from the csv file, you might just ignore the first line.
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Setting JDK in Eclipse
... ,means your eclipse
supports to java 1.8, something like this:
interface testI{
void show();
}
/*class A implements testI{
public void show(){
System.out.println("Hello");
}
}*/
public class LambdaDemo1 {
public static void main(String[] args) {
testI test ;
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How does Java handle integer underflows and overflows and how would you check for it?
...hods are intrinsics and will be replaced by machine specific code. A quick test showed Math.addExact being 30% faster than a copied method (Java 1.8.0_40).
– TilmannZ
Aug 23 '16 at 13:42
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What should main() return in C and C++?
...rmally call main() recursively, outside of places like IOCCC. I do have a test program that does it — mainly for novelty. If you have int i = 0; int main() { if (i++ < 10) main(i, i * i); return 0; } and compile with GCC and don't include -Wstrict-prototypes, it compiles cleanly under stringe...
Why does Python use 'magic methods'?
...lable, an object implements a method, def __len__(self) , and then it is called when you write len(obj) .
7 Answers
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Re-sign IPA (iPhone)
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Finally got this working!
Tested with a IPA signed with cert1 for app store submission with no devices added in the provisioning profile. Results in a new IPA signed with a enterprise account and a mobile provisioning profile for in house deployment (...
How to update Python?
... should completely uninstall and wipe this version before putting on the latest version.
4 Answers
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How to convert a byte array to a hex string in Java?
...har[] HEX_ARRAY = "0123456789ABCDEF".toCharArray();
public static String bytesToHex(byte[] bytes) {
char[] hexChars = new char[bytes.length * 2];
for (int j = 0; j < bytes.length; j++) {
int v = bytes[j] & 0xFF;
hexChars[j * 2] = HEX_ARRAY[v >>> 4];
he...
How can I remove all objects but one from the workspace in R?
...
whoah, that seems dangerous! Is there a way to test the pattern matching a la "echo" in the shell?
– DQdlM
Dec 11 '14 at 11:57
1
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How to check whether a string is a valid HTTP URL?
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Try this to validate HTTP URLs (uriName is the URI you want to test):
Uri uriResult;
bool result = Uri.TryCreate(uriName, UriKind.Absolute, out uriResult)
&& uriResult.Scheme == Uri.UriSchemeHttp;
Or, if you want to accept both HTTP and HTTPS URLs as valid (per J0e3gan's ...