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11
Which of these is true about unmodifiableCollection() method?
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Answer & Solution
Answer: Option B
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12
What will be the output of the following Java code?
import java.lang.reflect.*;
class Additional_packages 
{	 
     public static void main(String args[]) 
     {
   try 
         {
       Class c = Class.forName("java.awt.Dimension");
 Constructor constructors[] = c.getConstructors();
 for (int i = 0; i < constructors.length; i++)
     System.out.println(constructors[i]);
   }
   catch (Exception e)
         {
         System.out.print("Exception");
         }
    }
}
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Answer & Solution
Answer: Option A
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13
Which of these method is used add an element and corresponding key to a map?
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Answer: Option A
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14
How to remove duplicates from List?
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Answer & Solution
Answer: Option A
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15
Which of these iterators can be used only with List?
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Answer: Option B
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16
Is hashmap an ordered collection.
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Answer: Option B
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17
How is Arrays.asList() different than the standard way of initialising List?
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Answer & Solution
Answer: Option C
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18
What is difference between dequeue() and peek() function of java?
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Answer: Option C
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19
What is Remote method invocation (RMI)?
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Answer & Solution
Answer: Option A
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20
Which of these method of ArrayList class is used to obtain present size of an object?
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Answer & Solution
Answer: Option A
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