The challenge
Write a function which takes a number and returns the corresponding ASCII char for that value.
Example:
Ascii.getChar(65) // => 'A'
For ASCII table, you can refer to http://www.asciitable.com/
The solution in Java
public class Ascii {
public static char getChar(int c) {
return (char) c;
}
}
Test cases to validate our solution
import org.junit.Test;
import static org.junit.Assert.assertEquals;
import org.junit.runners.JUnit4;
public class SolutionTest {
@Test
public void testChar() {
assertEquals('7', Ascii.getChar(55));
assertEquals('8', Ascii.getChar(56));
assertEquals('9', Ascii.getChar(57));
assertEquals(':', Ascii.getChar(58));
assertEquals(';', Ascii.getChar(59));
assertEquals('<', Ascii.getChar(60));
assertEquals('=', Ascii.getChar(61));
assertEquals('>', Ascii.getChar(62));
assertEquals('?', Ascii.getChar(63));
assertEquals('@', Ascii.getChar(64));
assertEquals('A', Ascii.getChar(65));
assertEquals("getChar should return a `char`", 0, Character.compare('!', Ascii.getChar(33)));
}
}
