The document provides examples of Java code for printing "Hello World", getting different types of user input including integer, float, double, string, and character, and printing outputs. It includes code snippets using classes, importing packages like Scanner, and using methods like println, nextInt, nextFloat etc. to get input and display output in Java programs.

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

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

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

9. 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

10. Format specifiers references

11. Format specifiers references

12. 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);
}
}

13. 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);
}
}

14. 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);
}
}

15. 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

16. 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

17. 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);
}
}

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

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

20. THANK YOU