Computer Applications
Write a Java program to accept a character and print all the characters following it in the reverse order(till a).
Sample input:
If the character entered is d.
Sample output:
d
c
b
a
Answer
import java.util.Scanner;
public class KboatReverse
{
public static void main(String args[]) {
Scanner in = new Scanner(System.in);
System.out.print("Enter a letter: ");
char ch = in.next().charAt(0);
if (Character.isLetter(ch)) {
ch = Character.toLowerCase(ch);
for (char x = ch; x >= 'a'; x--) {
System.out.println(x);
}
}
else {
System.out.println("Invalid input");
}
}
}Output
Related Questions
The method to convert a String to double is:
- String.toDouble()
- Double.Parsedouble()
- Double.parseDouble(String)
- Double.parseDouble()
Primitive data types are built in data types which are a part of the wrapper classes. These wrapper classes are encapsulated in the java.lang package. Non primitive datatypes like Scanner class are a part of the utility package for which an object needs to be created.
(a) To which package the Character and Boolean classes belong?
(b) Write the statement to access the Scanner class in the program.
Assertion (A): Integer class can be used in the program without calling a package.
Reason (R): It belongs to the default package java.lang.
- Both Assertion (A) and Reason (R) are true and Reason (R) is a correct explanation of Assertion (A)
- Both Assertion (A) and Reason (R) are true and Reason (R) is not a correct explanation of Assertion(A)
- Assertion (A) is true and Reason (R) is false
- Assertion (A) is false and Reason (R) is true
Predict the output of the following code snippet:
char ch='B', char chr=Character.toLowerCase(ch); int n=(int)chr-10; System.out.println((char)n+"\t"+chr);