Advertisements
Advertisements
Question
What is the method to check whether a character is a letter or digit?
Options
isDigif(char)
isLetterOrDigit()
isLetterOrDigit(char)
isLETTERorDIGIT(char)
Advertisements
Solution
isLetterOrDigit(char)
Explanation:
isLetterOrDigit() determines whether a character is a letter, digit, or none of the above.
APPEARS IN
RELATED QUESTIONS
Give the output of the following code:
String P = “20”, Q = “19”,
int a = Integer .parselnt(P);
int b = Integer. valueOf(Q);
System.out.println(a+””+b);
Write a program to accept a number and check and display whether it is a Niven number or not.
(Niven number is that number which is divisible by its sum of digits).
Example:
Consider the number 126.
The Sum of its digits is 1+2+6 = 9 and 126 is divisible by 9.
State one difference between the floating point literals float and double.
What will be the output when the following code segment is executed?
System.out.println(“The king said\”Begin at the beginning!\“to me.”);
Design a class to overload a function area( ) as follows:
(i) double area (double a, double b, double c) with three double arguments, returns the area of a scalene triangle using the formula:
area = `sqrt ("s" ("s" - "a")("s" - "b")("s" - "c")) "2ab"`
where `"s" = ("a" + "b" + "c")/2`
(ii) double area (int a, int b, int height) with three integer arguments, returns the area of a trapezium using the formula:
area = `1/2` height (a+b)
(iii) double area (double diagonal 1, double diagonal 2) with two double arguments, returns the area of a rhombus using the formula :
area = `1/2` (diagonal 1 × diagonal 2)
Give the output of the following code.
String A = "26.0", B= "74.0";
double C = Double.parseDouble(A);
double D = Double.parseDouble(B);
System.out.println((C+D));
Give the output of the following Character class method:
Character.toUpperCase('a')Give the output of the following Character class method:
Character.isLetterOrDigit('W')Write the value of n after execution:
char ch = 'd';
int n = ch + 5;Define a class to accept a string and convert the same to uppercase, create and display the new string by replacing each vowel by immediate next character and every consonant by the previous character. The other characters remain the same.
Example: Input: #IMAGINATION@2024
Output: #JLBFJMBSJPM@2024
