Как преобразовать символ в ASCII в Java

В Java преобразовать символ в ASCII довольно просто, он просто конвертирует символ в int.

Преобразовать символ в ASCII

int ascii = (int) character;

Конвертировать ASCII в символ

char character = (char)ascii;

Пример на Java

package com.csharpcoderr.common;
/**
* Character Utility class
* @author mkyong
*
*/
public class CharUtils
{
/**
* Convert the characters to ASCII value
* @param character character
* @return ASCII value
*/
public static int CharToASCII(final char character){
return (int)character;
}

/**
* Convert the ASCII value to character
* @param ascii ascii value
* @return character value
*/
public static char ASCIIToChar(final int ascii){
return (char)ascii;
}
}

Модульный тест

package com.csharpcoderr.common;
import org.testng.Assert;
import org.testng.annotations.*;
/**
* Character Utils Testing
* @author mkyong
*
*/
public class CharUtilsTest {

@DataProvider
public Object[][] ValidDataProvider() {
return new Object[][]{
{ 'A', 65 },{ 'a', 97 },
{ 'B', 66 },{ 'b', 98 },
{ 'C', 67 },{ 'c', 99 },
{ 'D', 68 },{ 'd', 100 },
{ 'Z', 90 },{ 'z', 122 },
{ '1', 49 },{ '9', 57 },

};
}

@Test(dataProvider = "ValidDataProvider")
public void CharToASCIITest(final char character, final int ascii) {
int result = CharUtils.CharToASCII(character);
Assert.assertEquals(result, ascii);
}

@Test(dataProvider = "ValidDataProvider")
public void ASCIIToCharTest(final char character, final int ascii) {
char result = CharUtils.ASCIIToChar(ascii);
Assert.assertEquals(result, character);
}
}

Результат модульного теста

PASSED: CharToASCIITest(A, 65)
PASSED: CharToASCIITest(a, 97)
PASSED: CharToASCIITest(B, 66)
PASSED: CharToASCIITest(b, 98)
PASSED: CharToASCIITest(C, 67)
PASSED: CharToASCIITest(c, 99)
PASSED: CharToASCIITest(D, 68)
PASSED: CharToASCIITest(d, 100)
PASSED: CharToASCIITest(Z, 90)
PASSED: CharToASCIITest(z, 122)
PASSED: CharToASCIITest(1, 49)
PASSED: CharToASCIITest(9, 57)
PASSED: ASCIIToCharTest(A, 65)
PASSED: ASCIIToCharTest(a, 97)
PASSED: ASCIIToCharTest(B, 66)
PASSED: ASCIIToCharTest(b, 98)
PASSED: ASCIIToCharTest(C, 67)
PASSED: ASCIIToCharTest(c, 99)
PASSED: ASCIIToCharTest(D, 68)
PASSED: ASCIIToCharTest(d, 100)
PASSED: ASCIIToCharTest(Z, 90)
PASSED: ASCIIToCharTest(z, 122)
PASSED: ASCIIToCharTest(1, 49)
PASSED: ASCIIToCharTest(9, 57)

===============================================
com.csharpcoderr.common.CharUtilsTest
Tests run: 24, Failures: 0, Skips: 0
===============================================


===============================================
mkyong
Total tests run: 24, Failures: 0, Skips: 0
===============================================

Ссылка

http://www.asciitable.com/

Джава