java input & output statements

Input and output statements

1. Java Program class UserClassName { public static void main(String args[]){ // Your code here } }

2. Printing “Hello World” class Main{ public static void main(String args[]){ // Your code here } }

3. Printing “Hello World” class Main{ public static void main(String args[]){ System.out.println("Hello World"); //or// System.out.printf("Hello World"); } }

4. Getting User Input - Integer class Main{ public static void main(String args[]){ Scanner in = new Scanner(System.in); int a = in.nextInt(); System.out.println(a); //or// System.out.printf(“%d”,a); } } Input: 10 Output: Error

5. Format specifiers references

6. Format specifiers references

7. Getting User Input - Integer import java.util.Scanner; class Main{ public static void main(String args[]){ Scanner sobj = new Scanner(System.in); int a = sobj.nextInt(); System.out.println(a); } }

8. Getting User Input - Float import java.util.Scanner; class Main{ public static void main(String args[]){ Scanner in = new Scanner(System.in); float a = in.nextFloat(); System.out.println(a); } }

9. Getting User Input - Double import java.util.Scanner; class Main{ public static void main(String args[]){ Scanner in = new Scanner(System.in); double a = in.nextDouble(); System.out.println(a); } }

10. Getting User Input - String import java.util.Scanner; class Main{ public static void main(String args[]){ Scanner in = new Scanner(System.in); String a = in. next() ; String a=in.nexLine() System.out.println(a); } } Input: hello Output: hello Hello World Hello

11. Getting User Input - Character import java.util.Scanner; class Main{ public static void main(String args[]){ Scanner in = new Scanner(System.in); char a = in.nextChar(); System.out.println(a); } } Input: a Output: Error

12. Getting User Input - Character import java.util.Scanner; class Main{ public static void main(String args[]){ Scanner in = new Scanner(System.in); char ch = in.next().charAt(0); System.out.println(ch); } }

13. Print the output class Main { public static void main(String args[]) { } } Input : 10 Expected Output: Hexa decimal equivalent is A

14. Print the output //Code// Input : A Expected Output: Ascii Value is 65

15. THANK YOU