you can use setter for integer variable as your instance variable age is integer: public void setAge(String a) { try { this.age = Integer.parseInt(a); } catch(NumberFormatException e){ //.. code } } 0 solved Java Programming: Getter/Setter Questions
From personal experience: You would generally have Private data member when you do not want it to be accessed externally through another class that calls the class containing the Private data member. Public data members are those that you can access by other classes to obtain its contents. My opinion is that it is simply … Read more
Getters and setters are used in order to prevent code outwith the class from accessing implementation details. Maybe today some piece of data is just a string, but tomorrow it has be created by joining two other strings together and also keeping a count of the number of times the string is retrieved (OK, contrived … Read more
This is because you do absolute nothing in the setter, and if you do IsValid = true then you’re assigning the thing to itself, which naturally goes in circles. You should remove the setter since the getter relies on peripheral information and isn’t a standalone value. For the condition to be true, Branches needs to … Read more
1.Read about difference between “==” OR “equals”,sysout.printf and clean code. public static void main(String[] args) { Scanner sc = new Scanner(System.in); //Port obj = new Port(); int count, i; String b ; System.out.println(“Enter the number of students”); count= sc.nextInt(); int[] age = new int[count]; String[] name = new String[count]; String[] country=new String[count]; for (i = … Read more
First of all, I might think you have copied the program from an external source, since there is lots of compilation errors. Anyways… try this this might work… import java.util.Scanner; public class DemoPayroll { public static void main(String[] args) { Payroll newEmpInfoObject = new Payroll(); System.out.println(“Enter name”); Scanner keyboard = new Scanner(System.in); String name = … Read more
If you’re just trying to get objects in and out: map.put(key, value); value = map.get(key); Pardon me if i’m not interperating your questin correctly. solved Getters and Setters for HashMaps [closed]
I would suggest to make an int array to store your variables, so instead of: private int qz1, qz2,…. do private int [] quizValues; You can then get a value for a quiz: public int getQuizValue(int storePositionOfQuiz) { // check for outOfBounds! return this.quizValues[storePositionOfQuiz]; } If you want you can then initialize the quiz values … Read more