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1. |
What is the output of this program?
import java.util.*; class Maps { public static void main(String args[]) { HashMap obj = new HashMap(); obj.put("A", new Integer(1)); obj.put("B", new Integer(2)); obj.put("C", new Integer(3)); System.out.println(obj.get("B")); } } |
A. | 1 |
B. | 2 |
C. | 3 |
D. | Null |
Answer» C. 3 | |