sainadh sainadh - 28 days ago 5
Java Question

Integer to char - cast and print:

I want to know the logic behind this programm and

(char
) cast.
How does it work and how it is printing all the letters, symbols and numbers

package ascii1
public class Ascii1 {

public static void main(String[] args) {
int i=1;
while(i<122)
{
System.out.println((char)i+"\t");
if (i%10==0)
System.out.println("");
i++;
}

}
}


Its output is:


//Blanks in the beginning...

! "

$ % & ' (



)
*
+ ,

- . / 0 1 2

3 4 5 6 7 8 9 : ; <

=


? @ A B C D E F


G H I J K L M N O P

Q R S T U V W X Y Z

[ \ ] ^

_ ` a b c d

e f g h i j k l m n

o p q r s t u v w x

y BUILD SUCCESSFUL (total time: 0 seconds)

Answer

Using ASCII representation, every char has a numerical value.

When you iterate, adding +1 to the i variable, you get to numbers on the ASCII table representing some characters.

Finally, the (char) cast returns the above ASCII character.

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