单项选择题
25.intx=12;
26. while (x < 10) {
27. x--;
28. }
29. System.out.print(x);
What is the result?()
A. 0
B. 10
C. 12
D. Line 29 will never be reached.
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int x=0; int y 10; do { y--; ++x; } while (x < 5); System.out.print(x + “,“ + y); What is the result?()
A. 5,6
B. 5,5
C. 6,5
D. 6,6 -
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Float pi = new Float(3.14f); if(pi>3) { System.out.print(”pi is bigger than 3. “); } else { System.out.print(”pi is not bigger than 3. “); } finally { System.out.println(”Have a nice day.”); } What is the result?()
A. Compilation fails.
B. pi is bigger than 3.
C. An exception occurs at runtime.
D. pi is bigger than 3. Have a nice day.
E. pi is not bigger than 3. Have a nice day. -
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public static void main(String[] args) { String str = “null; if (str == null) { System.out.println(”null”); } else (str.length() == 0) { System.out.println(”zero”); } else { System.out.println(”some”); } } What is the result?()
A. null
B. zero
C. some
D. Compilation fails.
E. An exception is thrown at runtime.
