What is System.out.println() in Java ?

• Students Tutorial

Please see the below example carefully to know about System.out.println() .If you able to understand the example then you understand System.out.println() eaisly.

Example

Class Test
{
Static String s=“java”;
}

1. As you know here Test is a class.
2. “s” is a static variable type String.
3. Here “java” is nothing but the value of “s”.

Now I am going to print the length(How many character) of “s”.

So i am writing.

Test.s.length();

Example

Class System
{
Static PrintStrem out;
.
.
.
}

1. As you know here System(present in java.lang package) is a class.
2. “out” is a static variable type PrintStream.
3. Here “java” is nothing but the value of “s”.

System.out.println("Hello");

Now see the below example.