The methods that only accept a char value cannot support supplementary characters. ... The methods that accept an int value support all Unicode characters, including supplementary characters. …

Apr 2, 2013 · Other Methods To Consider String.equalsIgnoreCase () value equality that ignores case. Beware, however, that this method can have unexpected results in various locale-related cases, see …

May 31, 2012 · What's the difference between java.lang.String 's replace() and replaceAll() methods, other than the latter uses regex? For simple substitutions like, replace . with /, is there any difference?

Is there a native way to sort a String by its contents in java? E.g. String s = "edcba" -> "abcde"

Alternatively, you can use an Ints method from the Guava library, which in combination with Java 8's Optional, makes for a powerful and concise way to convert a string into an int:

Primitive question, but how do I format strings like this: "Step {1} of {2}" by substituting variables using Java? In C# it's easy.

Sep 1, 2010 · Can anybody explain to me the concept of the toString() method, defined in the Object class? How is it used, and what is its purpose?

I'm in a beginning programming class, and a lot of this had made sense to me up until this point, where we've started working with methods and I'm not entirely sure I understand the "static," "void...

May 21, 2009 · That String[] args part may become optional in future versions of Java. Work is underway to allow for simplified declaration of main method. See JEP 463: Implicitly Declared …

Object obj; String methodName = "getName"; Without knowing the class of obj, how can I call the method identified by methodName on it? The method being called has no parameters, and a String …