在java中将字符转换为ASCII数值 [英] Convert character to ASCII numeric value in java

问题描述

我有 String name = "admin";
然后我做 String charValue = name.substring(0,1);//charValue="a"

我想将 charValue 转换为它的 ASCII 值 (97)，我该如何在 java 中做到这一点?

I want to convert the charValue to its ASCII value (97), how can I do this in java?

推荐答案

很简单.只需将您的 char 转换为 int.

Very simple. Just cast your char as an int.

char character = 'a';    
int ascii = (int) character;

在您的情况下，您需要先从字符串中获取特定的字符，然后再进行转换.

In your case, you need to get the specific Character from the String first and then cast it.

char character = name.charAt(0); // This gives the character 'a'
int ascii = (int) character; // ascii is now 97.

虽然没有明确要求强制转换，但它提高了可读性.

Though cast is not required explicitly, but its improves readability.

int ascii = character; // Even this will do the trick.

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