問題詳情
Given:1. public class TestString1{2. public static void main(String[] args){3. String str = "420";4. str += 42;5. System.out.print(str);6. }7. }What is the output?
(A) 42
(B) 420
(C) 462
(D) 42042
(E) Compilation fails.F. An exception is thrown at runtime.
參考答案
答案：D
難度：簡單0.813333
統計：A(7),B(22),C(14),D(244),E(11)
用户評論
【用戶】Joe Chen
【年級】
【評論內容】A += B = A = A + B
【用戶】Joe Chen
【年級】
【評論內容】Given:1. public class TestString1{2. public static void main(String[] args){3. String str = "420";4. str += 42;5. System.out.print(str);6. }7. }What is the output?(A) 42(B) 420(C) 462(D) 42042(E) Compilation fails.(F). An exception is thrown at runtime.