Category: Java
For each character we have predefined ASCII numbers:
| Find ASCII Value of a character in Java |
package JavaQuestions;
/**
*
* @author NaveenKhunteta
*
*/
public class AsciiChar {
public static void main(String[] args) {
char c = ‘a’; // 97
int ascii = c;
int asciiNumber = (int) c;
System.out.println(“ASCII value of “ + c + “:”+ ascii);
System.out.println(“ASCII value of “ + c + “:”+ asciiNumber);
}
}
Output is:
ASCII value of a:97
ASCII value of a:97
| Multiply two Floating Point Numbers in Java |
package JavaQuestions;
/**
*
* @author NaveenKhunteta
*
*/
public class FloatingMultiplication {
public static void main(String[] args) {
float f1 = 2.5f;
float f2 = 3.5f;
System.out.println("the product is: " + (f1 * f2));
}
}
Output:
the product is: 8.75
This is very simple, just define two integer variables and use + operator to add them.
package JavaQuestions;
/**
*
* @author NaveenKhunteta
*
*/
public class AddNumbers {
public static void main(String[] args) {
int a = 10;
int b = 20;
int sum = a + b;
System.out.println("sum of a and b is: " + sum);
}
}Output:
sum of a and b is: 30
Print an Integer – entered by user from console/command line
package JavaQuestions;
import java.util.Scanner;
/**
*
* @author NaveenKhunteta
*
*/
public class PRintImnteger {
public static void main(String[] args) {
Scanner reader = new Scanner(System.in);
System.out.println("plz enter a number: ");
int num = reader.nextInt();
System.out.println("you entered: " + num);
}
}Scanner class is a default class which is coming from java.util package. It is used to take the user input from the console.
Example:
plz enter a number:
10
you entered: 10
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