java programming

World Write a Java program which analyses information about world countries. All classes are in package world. 2.1: States Every state in the world is identified by different attributes: capital town, border states, population and area (in square-meters); develop the following methods: • addState(String state, String capital, long population, double area) in class World to add a State to the system. • getCapital(String state) returns a string containing the name of the capital town. • getPopulation(String state) and getArea(String state) return respectively a long and a double value. • setBorder(String s1, String s2) tells the system that states s1 and s2 share a border. R2: Read from File The method loadData(String statesFile, String borderFile) loads in memory the data structure from 2 files: • File [login to view URL] contains information of each single state in the worlds in the following format "State : capital area population", for example: Italy : Rome 116,305 58,133,509 Jamaica : Kingston 4,244 2,758,124 Japan : Tokyo 145,882 127,463,611 The area is in kms (square-kilometers) and population in units (official United - Nations in 2007). There can be an arbitrary number of spaces between data in the same line. • File [login to view URL] contains information (incomplete) about borders between some states; each line contains a couple of neighbouring states separated by colon, for example: Spain : Portugal Spain : France Italy :Switzerland Italy : France Slovenia: Italy ...... R3: Borders • Method border(String s1, String s2) returns true if these two states are neighbours, false otherwise. • Method neighbours(String state) returns the number of neighbours of a given state. • Method getNeighbours(String state), return the comma-separated list of neighbouring states of a given state, for example: getNeighbours("Italy") returns "France, Switzerland, Austria, Slovenia, Vatican, San Marino". The order in which they are shown does not count. R4: Statistics The program will allow calculating some statistics: • Method populationSort() print on file "[login to view URL]" the list of states sorted in decreasing order of population. Each line of this file will contain the position number in the ranking, name and population separated by spaces 1. China 1321851888 2. India 1300000000 • Method areaSort() print on file "[login to view URL]" the list of states sorted in decreasing order of area. Each line contains the position number in the ranking, name and area separated by spaces. R5: GUI Develop a Graphical User Interface implemented in a different class, relying on the previous methods. Marking Scheme Application (providing the source code and compiled code) 70% Project Report: User guide, UML design 25% I have attached [login to view URL] and [login to view URL] file to the document. pls include the uml design and project report. thank you.