Question
Given the following sequence of Java statements

1. StringBuffer sb = new StringBuffer("abc");
2. String s = new String("abc");
3. sb.append("def");
4. s.append("def");
5. sb.insert(1, "zzz");
6. s.concat(sb);
7. s.trim();
Which of the following statements are true:

A. The compiler would generate an error for line 1.
B. The compiler would generate an error for line 2.
C. The compiler would generate an error for line 3.
D. The compiler would generate an error for line 4.
E. The compiler would generate an error for line 5.
F. The compiler would generate an error for line 6.
G. The compiler would generate an error for line 7.
Select all correct answers.
Answers
D, F   Your Comment




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