java_tutorial

Java
}
}
//HashMap
Map m1 = new HashMap();
m1.put("Zara", "8");
m1.put("Mahnaz", "31");
m1.put("Ayan", "12");
m1.put("Daisy", "14");
System.out.println();
System.out.println(" Map Elements");
System.out.print("\t" + m1);
This will produce the following result:
ArrayList Elements
[Zara, Mahnaz, Ayan]
LinkedList Elements
[Zara, Mahnaz, Ayan]
Set Elements
[Zara, Mahnaz, Ayan]
Map Elements
{Mahnaz=31, Ayan=12, Daisy=14, Zara=8}
The List Interface
The List interface extends Collection and declares the behavior of a collection that stores
a sequence of elements.
Elements can be inserted or accessed by their position in the list, using a zerobased
index.
A list may contain duplicate elements.
In addition to the methods defined by Collection, List defines some of its own,
which are summarized in the following table.
Several of the list methods will throw an UnsupportedOperationException if the
collection cannot be modified, and a ClassCastException is generated when one
object is incompatible with another.
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