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How do I invoke a Java method when given the method name as a string?
...an.Dog";
Class<?> dogClass = Class.forName(dogClassName); // convert string classname to class
Object dog = dogClass.newInstance(); // invoke empty constructor
String methodName = "";
// with single parameter, return void
methodName = "setName";
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Command to escape a string in bash
I need a bash command that will convert a string to something that is escaped. Here's an example:
3 Answers
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Python dictionary from an object's fields
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Agreed. Note that you can also convert the other way (dict->class) by typing MyClass(**my_dict), assuming you have defined a constructor with parameters that mirror the class attributes. No need to access private attributes or override dict.
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Android Facebook integration with invalid key hash
...e Play Console, and get the SHA-1 hash under App signing certificate. Then convert it to Base64, for example with this tool: Hexadecimal -> base64 string decoder
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Most efficient way to concatenate strings?
...choice though not for perf reasons. It can be clumsy syntax. Resharper can convert back and forth at will.
– usr
May 8 '18 at 16:13
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What is a 'SAM type' in Java?
...ions, a new feature in Java 8, are considered a SAM type and can be freely converted to them.
For example, with an interface like this:
public interface Callable<T> {
public T call();
}
You can declare a Callable using lambda expressions like this:
Callable<String> strCallable =...
Arduino Sketch upload issue - avrdude: stk500_recv(): programmer is not responding
...ly to the Leonardo as it has independent USB handling);
if the USB to UART converter does not have a problem (FTDI on older Duemilanove or ATmega16U2 on newer Arduino Unos);
if the ATmega328 chip is fried or wrongly installed;
if the bootloader has been overwritten or is failing;
if the right baudra...
What's wrong with Java Date & Time API? [closed]
...ar 109). There are a similar number of ++ and -- on the months in order to convert to a string.
They're mutable. As a result, any time you want to give a date back (say, as an instance structure) you need to return a clone of that date instead of the date object itself (since otherwise, people can m...
Pass a variable into a partial, rails 3?
...t the :locals hash is not needed when using Rails 3. The arguments hash is converted into arguments which are passed to the partial.
– superluminary
Jan 13 '12 at 14:36
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Trying to embed newline in a variable in bash [duplicate]
... This doesn't actually embed newlines, it embeds \n, which the echo -e converts to newlines as it prints. Depending on your actual goal, this may or may not do the trick.
– Gordon Davisson
Feb 4 '12 at 17:52
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