System.out.print in Java

 System.out.print in java 

 

In order to print a statement to console in Java, we have print() and println() methods available in PrintStream class. But these are instance methods, so we have to create an object to PrintStream class to invoke those instance methods. 

PrintStream ps = new PrinStream();// error, There is no zero argument constructor in PrintStream, so it will fail 

Approach - 1 

We have to pass some output stream to create a PrintStream object. 

PrintStream ps = new PrinStream(System.out); 

Ps.print(“Welcome to Java”); 

Approach - 2 

If you refer System class there are 3 static fields in, out and err 

Out – standard output stream, monitor or console 

In – standard input stream - keyboard 

Err – error console 

So System.out gives us the PrintStream class object. 

As we get PrintStream object by directly calling System.out, we can call print() methods available in PrintStream calss via System.out 

Like System.out.println and System.out.print