我有字符串名称= "admin"; 然后我做String charValue = name.substring(0,1);/ / charValue = " "
我想将charValue转换为它的ASCII值(97),我如何在java中做到这一点?
我有字符串名称= "admin"; 然后我做String charValue = name.substring(0,1);/ / charValue = " "
我想将charValue转换为它的ASCII值(97),我如何在java中做到这一点?
当前回答
String str = "abc"; // or anything else
// Stores strings of integer representations in sequence
StringBuilder sb = new StringBuilder();
for (char c : str.toCharArray())
sb.append((int)c);
// store ascii integer string array in large integer
BigInteger mInt = new BigInteger(sb.toString());
System.out.println(mInt);
其他回答
如果您想将整个字符串转换为连接的ASCII值,那么您可以使用这个-
String str = "abc"; // or anything else
StringBuilder sb = new StringBuilder();
for (char c : str.toCharArray())
sb.append((int)c);
BigInteger mInt = new BigInteger(sb.toString());
System.out.println(mInt);
其中你将得到979899作为输出。
这要归功于它。
我只是把它复制在这里,这样其他人就方便了。
非常简单。只需将char类型转换为int类型。
char character = 'a';
int ascii = (int) character;
在本例中,您需要首先从String中获取特定的字符,然后强制转换它。
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。
int ascii = character; // Even this will do the trick.
你可以用这段代码检查ASCII的数字。
String name = "admin";
char a1 = a.charAt(0);
int a2 = a1;
System.out.println("The number is : "+a2); // the value is 97
如果我错了,我道歉。
public class Ascii {
public static void main(String [] args){
String a=args[0];
char [] z=a.toCharArray();
for(int i=0;i<z.length;i++){
System.out.println((int)z[i]);
}
}
}
我知道这个问题已经以几种形式回答了,但这里是我的一点代码,看看所有的字符。
下面是代码,从类开始
public class CheckChValue { // Class name
public static void main(String[] args) { // class main
String name = "admin"; // String to check it's value
int nameLenght = name.length(); // length of the string used for the loop
for(int i = 0; i < nameLenght ; i++){ // while counting characters if less than the length add one
char character = name.charAt(i); // start on the first character
int ascii = (int) character; //convert the first character
System.out.println(character+" = "+ ascii); // print the character and it's value in ascii
}
}
}