public static int parseInt(String s) throws NumberFormatException { … } Instance method of a particular object instance. Sometimes we need a way to refer to a method of an existing object instance.

Java’s String class encapsulates an array of bytes.A byte can be converted to a char, in which case, String becomes an array of characters used to compose words, sentences, or any other data you ...

Java 8 introduced a new list() method in java.nio.file.Files. The list method returns a lazily populated Stream of entries in the directory. As such, it is more efficient for processing large folders.

How to printf a Java String. To use the Java String printf method to format output text, follow these rules:. Use %s as the printf String specifier in the text string being formatted.; Use %S as the ...

Using Java’s String length method. To get the number of characters in a given piece of text, the Java String length() method is all you need. Just make sure the String is not null, and avoid any ...

Thus, we might make the method return a string. To do this, we change the word “void” for the type of variable we want to return, and we add “return value ” at the end of the method.