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Judul : How To Convert String Or Char To Ascii Values Inward Java
link : How To Convert String Or Char To Ascii Values Inward Java

How To Convert String Or Char To Ascii Values Inward Java

You tin post away convert a grapheme e.g. 'A' to its corresponding ASCII value 65 past times exactly storing it into a numeric information type e.g. byte, int or long equally shown below :

int asciiOfA = (int) 'A';

Here casting is non necessary, exactly assigning a grapheme to integer is plenty to shop ASCII value of grapheme into an int variable, but casting improves readability. Since ASCII is 7-bit grapheme encoding, you lot don't fifty-fifty necessitate an integer variable to shop ASCII values, byte information type inward Java, which is 8 bits broad is plenty to shop ASCII value of whatever character.  So you lot tin post away likewise produce similar this :

byte asciiOfB = 'B'; // assign 66 to variable

Since String is zilch but a grapheme array inward Java, you lot tin post away likewise purpose this technique to convert a String into ASCII values, equally shown below :

StringBuilder sb = novel StringBuilder(); char[] letters = str.toCharArray();  for (char ch : letters) {     sb.append((byte) ch); }  System.out.println(sb.toString()); // impress 749711897 

You tin post away likewise straight convert String to byte array, where bytes volition concur ASCII value of  characters equally shown below :

byte[] ascii = "Java".getBytes(StandardCharsets.US_ASCII); String asciiString = Arrays.toString(ascii); System.out.println(asciiString); // impress [74, 97, 118, 97]

You tin post away run past times grapheme encoding equally "US-ASCII" also, equally nosotros direct maintain done inward our Java example, but using StandardCharsets.US_ASCII is safer because in that place is no direct chances of whatever spelling error causing UnsupportedEncodingException. See Core Java Volume 1 tenth Edition past times Cay S. Horstmann to larn to a greater extent than virtually String inward Java.

Java Program to convert String together with char to ASCII

Here is our Java program, which combines all the ways nosotros direct maintain seen to convert String together with grapheme to their respective ASCII values. You tin post away likewise purpose the same technique to convert String to other encoding formats e.g. ISO-8859-X (1-7) , UTF-8 , UTF-16BE , UTF-16LE. These are about of the pop encoding formats internally supported past times Java.

See course of pedagogy java.nio.charset.Charset  together with StandardCharsets for to a greater extent than information

Here is ASCII tabular array for your quick reference :

import java.text.ParseException; import java.util.Arrays;  /**  * How to convert a String to ASCII bytes inward Java  *   * @author WINDOWS 8  */  public class StringToASCII {      public static void main(String args[]) throws ParseException {                  // converting grapheme to ASCII value inward Java         char A = 'A';         int ascii = A;         System.out.println("ASCII value of 'A' is  : " + ascii);                  // you lot tin post away explicitly cast also         char a = 'a';         int value = (int) a;         System.out.println("ASCII value of 'a' is  : " + value);                                             // converting String to ASCII value inward Java         try {             String text = "ABCDEFGHIJKLMNOP";              // translating text String to vii chip ASCII encoding             byte[] bytes = text.getBytes("US-ASCII");                          System.out.println("ASCII value of " + text + " is following");             System.out.println(Arrays.toString(bytes));                      } catch (java.io.UnsupportedEncodingException e) {             e.printStackTrace();         }     }  }  Output ASCII value of 'A' is  : 65 ASCII value of 'a' is  : 97 ASCII value of ABCDEFGHIJKLMNOP is next [65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80]

That's all guys, forthwith you lot know how to convert a Java char or String to their ASCII values. Remember, when you lot shop  a char information type into numeric types e.g. byte, short, int or long, their ASCII values are stored. It's likewise efficient to purpose byte information type to shop ASCII values because it's a 7-bit grapheme encoding together with byte is plenty to shop ASCII.

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