Kanaputs is an interpreter for Java. With Kanaputs you can use Java as an interpreted language: no more compilation, each instruction is executed when you write it. Kanaputs allows to create Java objects and call methods on them. The grammar of the Kanaputs language is very close to the Java grammar. One big difference is that any variable handled by Kanaputs is type-less. There is no variable declaration nor type casting needed. Depending on the variable value, and where it is used, Kanaputs chooses the best internal Java basic type and tries the most appropriate type castings. When a variable handles a Java object, its type is the class of the Java object. Another key feature of Kanaputs is the reactivity. If the variable ‘c’ was defined like this c = a + b; and if the reactivity of ‘c’ is set (c.reactive = true;), each time the value of ‘a’ or ‘b’ changes then the value of ‘c’ is updated as the result of the addition.