It checks whether the string contains the specified sequence of char values. If yes then it returns true else false. It throws NullPointerException of ‘s’ is null. This method searches the specified ...

For more on that, check out our guide to Android development for beginners. For the purposes of this Java tutorial, it may be easier to write your code directly into a Java compiler app.

Basic string encryption and decryption via the bitwise-xor operator. The idea I had with this is that you would be unable to actually decrypt the strings without the key array. Here is some example ...

The java.base module also exports packages to other modules, such as java.lang, which contains core classes like Object and String. These packages are then loaded by the bootstrap class loader.

Why does Java's standard class library contain empty interfaces like Cloneable and Serializable? Find out why in this sixth installment in the "Object-oriented language basics" series. You'll also ...