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In Java, ArrayList is a dynamic array that allows the storage of different data types. Here are some common types of ArrayList:
  1. ArrayList of Integer (ArrayList<Integer>)
      • Used to store integer values.
      • Example:
    1. ArrayList of String (ArrayList<String>)
        • Used to store string values.
        • Example:
      1. ArrayList of Double (ArrayList<Double>)
          • Used to store decimal values.
          • Example:
        1. ArrayList of Custom Objects (ArrayList<MyClass>)
            • You can create an ArrayList to store custom objects.
            • Example:
          1. ArrayList of Boolean (ArrayList<Boolean>)
              • Used to store boolean values.
              • Example:
            1. ArrayList of ArrayList (ArrayList<ArrayList<String>>)
                • This is a nested ArrayList that can store multiple ArrayList objects.
                • Example:
              These different types allow ArrayList in Java to flexibly store various types of data.
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