Question

所以我正在尝试制作一个让用户输入他/她名字的程序。然后根据它的位置打印出他们名字的字符。

实施例

Enter your name : Joshua
Output : Joossshhhhuuuuuaaaaaa               //multiplying the characters of their names.

所以这里是我的代码，因为我还不太熟悉字符串方法。

 import java.util.Scanner;
 class Namex {
 public static void main(String[]args) {

  Scanner p = new Scanner(System.in);

  String name = "";
  int z;



   System.out.print("Enter name : ");
   name = x.nextLine();

     y = name.length()-1;

    for(int i=0; i<=y; i++) {        //i'm not quite sure what method to use yet 

    }

   }                       // should i use charAt?
     }

Answer 1

在'for'循环中，您可以将此'for loop'置于打印状态。您应该使用'charAt（k）'来获得第k个位置的字符。

for(int j=0; j<=i; j++){
    System.out.print(name.charAt(i));
}

Answer 2

private String multiplyLetters(String text) {
    StringBuilder builder = new StringBuilder();
    for (int i = 0; i < text.length(); ++i) {
        char c = text.charAt(i);
        for (int count = 0; count < i + 1; ++count) {
            builder.append(c);
        }
    }
    return builder.toString();
}

Answer 3

 import java.util.Scanner;

class name 
 {

public static void main(String[]args) 
 {
   Scanner x = new Scanner(System.in);

    System.out.print("Enter name : ");

    String name = x.nextLine();



   for(int i=1; i<=name.length(); i++) 
   {
       for(int s=0;s<i;s++)
     {
           System.out.print(name.charAt(i-1));
                        }//End nested for
     }//End main for

System.out.println();

}//End Main

 }//End Class

在java中复制名字字符？

3 个答案: