问题:
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
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());
}
}
● 参考解析
本题暂无解析