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任何人都可以帮助我解决此问题,但我一直在收到错误消息。 我主要关心如何打印这些线路输出“打印出了名的长度如果超过10且小于20个字符长,并且在名称中第三个字母”打印出长度超过10个字符且长度小于20个字符的名称,并在名称中输入第三个字母
public static void main(String[] args) {
System.out.println("Class activity");
Scanner scn = new Scanner(System.out);
System.out.println("Please enter your name");
String name = scn.nextDouble();
Main.processName(name);
}
/**
* Print out the length of the name if it is more than 10 and less than 20 characters long, and the third letter in the name
*/
private int processname(String name) {
int len = name.len();
if (len > 10 | len < 20) {
System.out.println("Wow," + name + " that name is between 10 and 20 characters long!");
}
char thirdLetter = name.charAt(3);
System.out.println("Your name has " + len + " letters and the second letter is " + thirdLetter);
}
逻辑或是||,不是|。 –