Java Variables
Print Variables
Display Variables
Displaying variables is a common usage for the println() function.
Use the + symbol to merge text with a variable:
Example
String name = "John";
System.out.println("Hello " + name);
Additionally, you can add a variable to another variable by using the + symbol:
Example
String firstName = "John ";
String lastName = "Doe";
String fullName = firstName + lastName;
System.out.println(fullName);
The + symbol functions as a mathematical operator for numeric values (note that we are using int (integer) variables here):
Example
int x = 5;
int y = 6;
System.out.println(x + y); // Print the value of x + y
From the above example, you may anticipate:
- x stores the value 5
- y stores the value 6
- Then we use the println() method to display the value of x + y, which is 11
