in Java, what is the initial value inside an array. For instance,
My complete code:
public class Job{
public Job(){
String jobTitle = "";
}//end constructor
Job[] x = new Job[20];
}//end Job class
What is inside x array, at index 0, 1, 2...etc.? Is every index filled with an empty string named jobTitle? Also, is this an array of Objects? Specifically Job objects?
x is an array of 20 Job objects, all of which are initialized to null. If you want to initialize each one to be a new object you can use a for loop:
for (int i = 0; i < x.length; i++) {
x[i] = new Job();
}
Job in each index. Your constructor will create an instance of String jobTitle that's given the empty string value for each object creation, but the instance of String is not saved since you don't hang on to the reference outside of your constructor.String jobTitle by setting it to the empty string (also written "").Each index in an array references null until it is initialized to another value.
So
Job[] jobs = new Job[2];
will hold 2 Job references, but they will both be null. That is until you initialize them
jobs[0] = new Job();
jobs[1] = new Job();
Note that in this case, you've declared x as an instance field of Job, so each new Job object you create will have a Job array with 20 null Job references.
