how to define an arraylist in java

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Alessandro
05 Sep 2016
1ArrayList<Integer> integerArray = new ArrayList<Integer>();
2ArrayList<String> integerArray = new ArrayList<String>();
3ArrayList<Double> integerArray = new ArrayList<Double>();
4//... keep replacing what is inside the <> with the appropriate
5//data type
6
Isaac
02 Oct 2018
1ArrayList<Integer> integerArray = new ArrayList<Integer>();
2ArrayList<String> stringArray = new ArrayList<String>();
3ArrayList<Double> doubleArray = new ArrayList<Double>();
4//... keep replacing what is inside the <> with the appropriate
5//data type
Lilou
16 Sep 2016
1ArrayList<Type> name = new ArrayList<Type>();
Silvana
16 Jun 2017
1ArrayList<E> yourArray = new ArrayList<E>();
2
3//'E' can be raplaced with any data type or object, or left as 
4// E if used for general funcitonality
Roberta
23 Oct 2020
1//Create the Arraylist variable: . Replace the T with the type of 
2//data to be stored in the list.
3ArrayList<T> exampleList = new ArrayList<>();
4//You can now perform operations on this ArrayList
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