When writing Java code, if we want to print something in the terminal, we can make use of System.out.println()
.
Here is a program that prints "Hello World!"
in the terminal.
System.out.println("Hello World!");
Here is the output:
Hello World!
Display Variables
System.out.println()
can also take variables. We might need to print the output of an expression or the variable for debugging.
Here is a program that adds two numbers and prints the sum:
int sum = 2 + 3;
System.out.println(sum);
Here is the output:
5
println vs print
Similar to println()
, there is another method called print()
. The difference is, println()
automatically adds a new line after printing the message. That is not done by print()
.
Here is a set of 3 System.out.println()
statements:
System.out.println("Apple");
System.out.println("Banana");
System.out.println("Orange");
Each printing will be done in separate lines.
Apple
Banana
Orange
Whereas, let us try the same three lines using System.out.print()
:
System.out.print("Apple");
System.out.print("Banana");
System.out.print("Orange");
Here is the output:
AppleBananaOrange