How do I cast a Java Object into a List of integers?

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How do I cast a Java Object into a List of integers?
Java : autoboxing of an Object array of integers, cast to int from LinkedList.toArray()
Java Generics : Unchecked cast from List<capture#10-of ?> to List<Object>
unchecked cast 'java.lang.object' to 'java.util.list '
java cast Object to List<SomeType>
Java: Selenium: WebDriver: Unable to Parse a List<WebElement> Object; Get Error "cannot be cast to java.lang.

How do I cast a Java Object into a List of integers?

Tag : java , By : user106284

Date : December 02 2020, 10:46 PM

will be helpful for those in need I think you can only cast the Object next = ... object into the type java.util.Arrays$ArrayList, but because it is a private static class, it is better to cast it to java.util.List class.
Like:

List<?> result = lib.get();
Iterator<?> iterator = result.iterator();
while(iterator.hasNext()){
    Object next = iterator.next();
    // -------------------
    List<Integer> list = (List<Integer>) next;
    System.out.println(list.get(0));
    System.out.println(list.get(1));
    // -------------------
}

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How do I cast a Java Object into a List of integers , Java : autoboxing of an Object array of integers , cast to int from LinkedList.toArray() , Java Generics : Unchecked cast from List<capture#10-of > to List<Object> , unchecked cast java.lang.object to java.util.list , java list of integers ,

Java : autoboxing of an Object array of integers, cast to int from LinkedList.toArray()

Tag : java , By : Julian Ivanov

Date : March 29 2020, 07:55 AM

wish helps you You'd have to create a new array and assign each value from the Integer[] array.
Apache commons-lang has ArrayUtils.toPrimitive(wrapperArray).

Java Generics : Unchecked cast from List<capture#10-of ?> to List<Object>

Tag : java , By : koder

Date : March 29 2020, 07:55 AM

Any of those help I have a warning : Type safety: Unchecked cast from List < capture#10-of ?> to List < Object> , Change List list to List in :

public JTableUt(List<?> list, Class<?> classGen)

unchecked cast 'java.lang.object' to 'java.util.list '

Tag : java , By : Hugo Hernan Buitrago

Date : March 29 2020, 07:55 AM

Any of those help In your example, it does not look like you need this to be a List, so you can do

List<?> users = (List<?>) xStream.fromXML(xml);

java cast Object to List<SomeType>

Tag : java , By : Mario Tristan

Date : March 29 2020, 07:55 AM

wish helps you What you are trying to do cannot be achieved by one simple cast. This has to do with type erasure during compilation of Java code. You can do one of two things:
Cast and accept the unchecked warning (you can suppress it by adding @SuppressWarning on the method). Only do this if you are sure that the Object is actual of type List otherwise you will get ClassCastExceptions at runtime. Check the type of the variable against List and then iterate over it adding each entry to a new list of type T. You can then validate each entry in the original list against type T before adding it. (Not doing so will also result in the unchecked warning)