题解代码:
package step4;
import java.util.*;
public class HelloWorld {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
//程序会输入三次数据
/********** Begin **********/
ArrayList<String> list = new ArrayList<String>();
for(int i = 0; i<3 ; i++){
list.add(sc.next());
}
for(int i = 0; i<3 ; i++){
System.out.printf("集合的第%d个数据为:",i+1);
System.out.println(list.get(i));
}
/********** End **********/
}
}