public static final PrintStream out=null;
but i did'nt undestand...this is has-A relationship but where the object of PrintStream class is creating.
please help me......thanks
out => PrintStream
PrintStream => pirntln method invoke print method => Javadoc PrintStream println(java.lang.String)
docs.oracle.com wrote: public void print(String s)
Print a string. If the argument is null then the string "null" is printed. Otherwise, the string's characters are converted into bytes according to the platform's default character encoding, and these bytes are written in exactly the manner of the write(int) method.
s - The String to be printed
Javadoc PrintStream print(java.lang.String)
If you want an implementation, you can extract the code in open-jdk :
Ritesh raushan wrote:but i did'nt undestand...this is has-A relationship but where the object of PrintStream class is creating.
What is there, you did not understand? It simply says that the System class has an object "out" of PrintStream class. You have already shown the code there. If you are worried about the initialization of "out",then
shows you how "out" is reassigned