i want to convert Object to String when the object is an array seen like this
public void convertValue(Object value) {
if(value.getClass().isArray()){
Arrays.deepToString(value.toArray());
}
}
How i cast value to make "value.toArray()"?
If you only want to handle object arrays (not primitive arrays) you can just cast to Object[], due to array variance:
if (value instanceof Object[]) {
String text = Arrays.deepToString((Object[]) value);
...
}
For primitive arrays you couldn't call deepToString anyway, of course.
Sample code to demonstrate array variance:
public class Test {
public static void main(String[] args) {
Object x = new String[] { "Hello", "there" };
Object[] array = (String[]) x;
// Prints "class [Ljava.lang.String;"
System.out.println(array.getClass());
}
}
As you can see, the array value still refers to a string array - but a String[] reference can be assigned to an Object[] variable.
