(I'm new at Java programming)
I have for example:
char x = '9';
and I need to get the number in the apostrophes, the digit 9 itself. I tried to do the following,
char x = 9; int y = (int)(x);
but it didn't work.
So what should I do to get the digit in the apostrophes?
In Java, we can convert the Char to Int using different approaches. If we direct assign char variable to int, it will return the ASCII value of a given character. If the char variable contains an int value, we can get the int value by calling Character. getNumericValue(char) method.
valueOf(a) - converts the char type variable a into a String. Integer. parseInt() - converts the string into an int.
char can be multiplied by integer in java.
round() method converts the double to an integer by rounding off the number to the nearest integer. For example – 10.6 will be converted to 11 using Math. round() method and 1ill be converted to 10 using typecasting or Double. intValue() method.
The ASCII table is arranged so that the value of the character '9'
is nine greater than the value of '0'
; the value of the character '8'
is eight greater than the value of '0'
; and so on.
So you can get the int value of a decimal digit char by subtracting '0'
.
char x = '9'; int y = x - '0'; // gives the int value 9
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