What will be written to the standard output when the following program is run?() public class Q03e4 { public static void main(String args[]) { String space = " "; String composite = space + "hello" + space + space; composite.concat("world"); String trimmed = composite.trim(); System.out.println(trimmed.length()); } }
- A、5
- B、6
- C、7
- D、12
- E、13
正确答案:A
答案解析:有
微信扫一扫手机做题