英文:
How can I get back the main character from the UTF-8 code in JAVA?
问题
私制作了一个ASCII编码器-解码器。我将字符编码为UTF-8。要编码，我正在使用以下代码：
private String asciiReturn(String inpString){
int codePoint = 0;
StringBuilder str = new StringBuilder();
for (int i = 0; i < inpString.length(); i++){
codePoint = Character.codePointAt(inpString, i);
i += Character.charCount(codePoint) - 1;
str.append(codePoint);
str.append(" ");
}
return str.toString();
}
因此，通过这种方式，我可以编码所有这些表情符号。
例如，对于这个表情符号 '🤷🏻♂️'，我得到了 "129335 127995 8205 9794 65039"。这基本上是该表情符号的UTF-8十进制值，这正是我想要的。但是我的问题在于解码。
我想要的是：（示例）
输入字符串："72 117 104 33 129335 127995 8205 9794 65039"
输出字符串："Huh!🤷🏻♂️"
原因：
72 -> 'H'
117 -> 'u'
104 -> 'h'
33 -> '!'
129335 127995 8205 9794 65039 -> '🤷🏻♂️'
提前感谢 😊👍
英文:
I am making an ASCII Encoder-Decoder. I am encoding the characters into UTF-8. To encode I am using this code:
private String asciiReturn(String inpString){
int codePoint = 0;
StringBuilder str = new StringBuilder();
for (int i = 0; i < inpString.length(); i++){
codePoint = Character.codePointAt(inpString, i);
i += Character.charCount(codePoint) - 1;
str.append(codePoint);
str.append(" ");
}
return str.toString();
}
So by this, I can encode all those emoji characters too.
Like '🤷🏻♂️' for this emoji I am getting "129335 127995 8205 9794 65039". So this is basically the UTF-8 decimal value of the emoji and that's exactly what I want. But my problem is the decoding.
What I want is: (Example)
Input String: "72 117 104 33 129335 127995 8205 9794 65039"<br>
Output String: "Huh!🤷🏻♂️"
Cause:
72 -> 'H'<br>
117 -> 'u'<br>
104 -> 'h'<br>
33 -> '!'<br>
129335 127995 8205 9794 65039 -> '🤷🏻♂️'
Thanks in advance 🙂
答案1
得分: 1
尝试这个。
private String decode(String inpString) {
return Arrays.stream(inpString.split("\\s+"))
.map(s -> Character.toString(Integer.parseInt(s)))
.collect(Collectors.joining());
}
和
String input = "72 117 104 33 129335 127995 8205 9794 65039";
System.out.println(decode(input));
输出
Huh!💩👋♂️
你也可以像这样编写你的编码方法：
static String asciiReturn(String s) {
return s.codePoints()
.mapToObj(Integer::toString)
.collect(Collectors.joining(" "));
}
和
String s = "Huh!💩👋♂️";
System.out.println(asciiReturn(s));
输出
72 117 104 33 129335 127995 8205 9794 65039
英文:
Try this.
private String decode(String inpString) {
return Arrays.stream(inpString.split("\\s+"))
.map(s -> Character.toString(Integer.parseInt(s)))
.collect(Collectors.joining());
}
and
String input = "72 117 104 33 129335 127995 8205 9794 65039";
System.out.println(decode(input));
output
Huh!🤷🏻♂️
You can also write your encoding method like this:
static String asciiReturn(String s) {
return s.codePoints()
.mapToObj(Integer::toString)
.collect(Collectors.joining(" "));
}
and
String s = "Huh!🤷🏻♂️";
System.out.println(asciiReturn(s));
output
72 117 104 33 129335 127995 8205 9794 65039
通过集体智慧和协作来改善编程学习和解决问题的方式。致力于成为全球开发者共同参与的知识库，让每个人都能够通过互相帮助和分享经验来进步。
评论