Repository files navigation Data type casting in Java is used to convert one data type into another data type so that memory consumption can be controlled. Type casting of two types is used in Java ...

Fewer bugs: Since Java handles the type casting automatically, you avoid mistakes like ClassCastException s. In short, pattern matching makes your Java code simpler, safer, and easier to read.

Learn about the new Java 10 "var" type, and experiment using JShell with this hands-on tutorial on how to reduce boilerplate code using new type inference for local variables.

Covariance and contravariance might seem esoteric, but you'll need these concepts more than ever as the Java language evolves. Get started with type dependency in array types, generic types, and ...