Advertisements
Advertisements
Question
Predict the output of the following code snippet: String P = "20", Q = "22";
int a = Integer.parseInt(P);
int b = Integer.value0f(Q);
System.out.println(a + " " + b);
Options
20
2220
20 22
22
Advertisements
Solution
20 22
Explanation:
A string like "" added to number makes it a string. Hence 20 + " " + 22 gives 20 22.
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);
State the data type and value of res after the following is executed :
char ch = ‘9’;
res = Character. isDigit(ch)
State the number of bytes occupied by char and int data types.
State the data type and value of res after the following is executed:
char ch = ‘t’;
res=Character. toUpperCase(ch);
int res = ‘A’;
What is the value of res?
State one difference between the floating point literals float and double.
What is the data type returned by the library function?
compareTo()
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 Character class
method:Character.isLetterOrDigit('W')
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
