string - 字符串轉換成ASCII

string — ASCII

實現了三個功能:

  1. 字符串轉換成ASCII
  2. ASCII轉換成ASCII字符串
  3. 字符替換
package string;

public class Solution {
    public static void main(String[] args){
        stringToAsciiS("我的家");
        assciiToString("25105 30340 23478");
        StringBuffer sb = new StringBuffer("We Are Happy");
        replaceSpace(sb);
    }

    //字符串轉換成ASCII
    public static void stringToAsciiS(String value){
       //字符串轉換成字符數組
        char[] chars = value.toCharArray();
        for(int i=0;i<chars.length;i++){
            System.out.println(chars[i] + " " + (int) chars[i]);
        }
    }
    //ASCII轉換成字符串
    public static void assciiToString(String value){
        String[] chars = value.split(" ");
        for(int i=0;i<chars.length;i++){
            System.out.println(chars[i] + " " + (char)Integer.parseInt(chars[i]));

        }
    }

    public static String replaceSpace(StringBuffer str){
        StringBuffer sb = new StringBuffer();
        char[] chars = str.toString().toCharArray();
        for(int i=0;i<chars.length;i++){
            if((int)chars[i] != (int)' '){
                sb.append(String.valueOf(chars[i]));
            }else {
                sb.append("%20");
            }
        }
        System.out.println(sb.toString());
        return sb.toString();
    }
}
//輸出251053034023478
251053034023478 家
We%20Are%20Happy
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