I want to be able to write a method with a string and integer as the parameters for example, and I want to then create a variable inside that class with the integer value in which I can later recall. For example:
public void setInt(String identifier, Integer) {
}
if I then call
setInt("age", 25); //stores 25 with identifier "age"
it would create a variable called age, which I could later access by calling
getInt("age") //would return 25
How would I go about doing this?
You could hold a Map data member, and use it to store values:
public class SomeClass {
// could (should?) be initialized in the ctor
private Map<String, Integer> map = new HashMap<>();
public void setInt (String identifier, int value) {
// This assumes identifier != null, for clarity
map.put (identifier, value);
}
public int getInt (String identifier) {
return map.get (identifier);
}
If you had a Map you could do that or if you used reflection. The best way is to just create a getter and setter pair per instance variable:
private int age;
public void setAge(int age) {
this.age = age;
}
public int getAge() {
return age;
}
If you had a map like the following, you could achieve this:
Map<String, Object> properties = new HashMap<>();
public void setInt(String property, int value) {
properties.put(property, value);
}
public int getInt(String property) {
return (int) properties.get(property);
}
// Usage
setInt("age", 25);
int age = getInt("age");
