Practice Common String Operations (9.3) - String Handling

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10 questions

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6 sample questions

Question 1.
What does the length() method do?
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Think about counting characters.
Question 2.
What will name.charAt(0) return if name = "Sarah"?
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This is the first character in the string.
3Question 3.
What does the trim() method do?
- Removes all characters
- Removes leading and trailing whitespace
- Turns all characters into uppercase
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Think about spaces around a string.
4Question 4.
The method name.equals("John") checks if the string name is equal to 'John'. True or False?
- True
- False
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Consider character matching.
Question 5.
Given the string str = "The quick brown fox jumps over the lazy dog", extract the substring "brown fox" using the substring() method.
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Count characters to find the correct indices.
Question 6.
Create a sequence of concatenated strings resulting in a full sentence: 'I love programming.' using at least three string variables.
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Think about how parts combine to make a whole.

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