Explanations “Top Java Quiz Questions”

What is the result of the following statements?

6: List<String> list = new ArrayList<String>();
7: list.add("one");
8: list.add("two");
9: list.add(7);
10: for(String s : list) System.out.print(s);

❌ A. onetwo
❌ B. onetwo7
❌ C. onetwo followed by an exception
✅ D. Compiler error on line 9.
❌ E. Compiler error on line 10

Explanation:
The code does not compile because list is instantiated using generics. Only String objects can be added to list and 7 is an int.

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Create: 2021-02-10
Last Update: 2025-07-06 10:02:22

What is the result of the following statements?

6: List<String> list = new ArrayList<String>();
7: list.add("one");
8: list.add("two");
9: list.add(7);
10: for(String s : list) System.out.print(s);

BY Explanations “Top Java Quiz Questions”

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