参考代码:
import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); //输入数字n n个字符 int n = scanner.nextInt(); //输入字符串 String str = scanner.next(); if (str.length() == n) { //输入数字m int m = scanner.nextInt(); getString(str, m); } } //获取新的子串 public static void getString(String str,int m) { String newStr = ""; //从需要复制的索引开始 for (int i = m - 1; i < str.length(); i++) { char c = str.charAt(i);//获取每一字符 newStr = newStr + c;//拼接成新的字符串 } System.out.println(newStr); } }
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