一個JAVA簡單的題目 20點喔

Question

請將由鍵盤中輸入的字元，前後３個 * 包圍，假設輸入的字元是Ａ，則輸出結果為 *** Ａ ***

import java.io.*;

public class hw3_23

{

public static void main(String args[]) throws IOException

{

BufferedReader buf;

String str;

char ch;



buf=new BufferedReader(new InputStreamReader(System.in));



System.out.print(" 請輸入一個字元 :");

str=buf.readLine();

ch=str.charAt(0);

…

}

}
我寫到這...
請問有遺漏什麼嗎?
謝謝

Answer 1

import java.io.*;

public class hw3_23

{

public static void main(String args[]) throws IOException

{

BufferedReader buf;

String str;





buf=new BufferedReader(new InputStreamReader(System.in));



System.out.print(" 請輸入一個字元 :");

str=buf.readLine();
System.out.print("***"+str+"***");

}

}

Answer 2

import java.io.*;
import java.util.*;
public class TEST
//檔名：TEST.java
{
public static void main(String[] args)
{
PrintStream o=new PrintStream(System.out);
Scanner i=new Scanner(System.in);
o.printf("Input a charcter: ");
String s=i.next();
o.printf("***%s***\n",s);
}
}

Answer 3

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