JAVA (please solve it without arrays) java program , without arrays please

Part A) Define a Class named App with the following private data members: name: to represent the app's name. The default value is NewApp. rate: to represent the app's rate, in a range from 0.0 to 5.0. The default value is 0.0. downloads: to represent the app's number of downloads, as a positive number. The default value is 5. In addition, the class has the following methods: A default constructor to initialize the data members. A set method named setApp to set all app information. Please provide an error message for invalid values. A get method for each data member. A method named is TopApp that returns true if the app has a rate of 5.0 and more than 100 downloads. Otherwise the method should return false. Part B) Write a program that do the following: 1. Create object of App named A1 with name: Google map, rate: 5, downloads= 600. 2. Create object of App named A2 with name: Talabat, rate: 4, downloads= 300. 3. Create object of App named A3 and ask the user to read suitable data for it. 4. Print the names of apps that is considered Top Apps