Java OCA OCP Practice Question 918

Question

What is the result of the following statements? 

3: ArrayList<Integer> values = new ArrayList<>(); 
4: values.add(4); 
5: values.add(5); 
6: values.set(1, 6); 
7: values.remove(0); 
8: for (Integer v : values) System.out.print(v);
  • A. 4
  • B. 5
  • C. 6
  • D. 46
  • E. 45
  • F. An exception is thrown.
  • G. The code does not compile. 


C.

Note

After line 4, values has one element (4).

After line 5, values has two elements (4, 5).

After line 6, values has two elements (4, 6) because set() does a replace.

After line 7, values has only one element (6).




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