<¿Cómo a>
package number;
import java.util.LinkedList;
import java.util.List;
import java.util.Scanner;
public class Number {
public static void main(String[] args) {
List<String> list=new LinkedList<String>();
Scanner input=new Scanner(System.in);
System.out.println("请输入一串数字:");
String str=input.nextLine();
System.out.println("请输入后移位置的m个数:");
int m=input.nextInt();
for (int i = str.length()-1; i >=0; i--) {
if(i>=m) {
((LinkedList<String>) list).addFirst(str.substring(i, i+1));
}else {
((LinkedList<String>) list).add(str.length()-m,str.substring(i, i+1));
}
}
for (int i = 0; i < list.size(); i++) {
System.out.print(list.get(i));
}
}
}
<La práctica de dos>
import java.util.Scanner;
public class NumberDemo {
public static void main(String[] args) {
Scanner input=new Scanner(System.in);
System.out.println("请输入一串数字:");
String str=input.nextLine();
System.out.println("请输入后移位置的m个数:");
int m=input.nextInt();
StringBuffer strr=new StringBuffer(str);
strr.append(strr.substring(0, m));
strr.delete(0,m);
System.out.println(strr);
}
}