The theme of diploma thesis is a Java application theory and practice. The thesis deals in the first part of theoretical introduction to programming languages, history of java, classification by paradigm. The thesis includes a closer acquaintance with the Java programming language and an overview of the basic functions and syntax of Java like a programming language such as object-oriented The practical part of the thesis deals programming of applications in Java. This section also deals the preparatory of development, analysis and design of graphical user interface of application. The thesis contains parts of the program code which are described and explained. The program is functional and it is for overview of claims which are exported fr...