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Categories >> Software >> Java Related >> Java J2EE >> Core Java
 
 


 

 
 Core Java interview questions  Core Java Interview Questions (1720)
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Question
define  System.out.println(); what is the meaning!
 Question Submitted By :: Guest
I also faced this Question!!     Rank Answer Posted By  
 
  Re: define System.out.println(); what is the meaning!
Answer
# 1
System: System refers to current java program.

out: out refers to output device. by default it is monitor.

println: to print the specific string onto output device in
next line

System: its the class
out: its the object of the class System
println():its the method which tells the compiler to print
a new line.
 
Is This Answer Correct ?    124 Yes 90 No
Muffy
 
  Re: define System.out.println(); what is the meaning!
Answer
# 2
System is a class
out is a method of printstream.
println is method .
 
Is This Answer Correct ?    36 Yes 92 No
Stranger_ajnabi53@yahoo.c
[Student]
 
 
 
  Re: define System.out.println(); what is the meaning!
Answer
# 3
System is a class and out is a static attribute which is of
type printstream. printstream class has a method called
println().
 
Is This Answer Correct ?    64 Yes 18 No
Mohit Gupta
 
  Re: define System.out.println(); what is the meaning!
Answer
# 4
system- system is predefined class to provide access to the
system
out - out is the output stream used to connect the
console
println- println is method which is tell the compiler to
write a new line in our console
 
Is This Answer Correct ?    27 Yes 18 No
Rinal
 
  Re: define System.out.println(); what is the meaning!
Answer
# 5
system- is a class

out-is a field of type printstream

println-is a meathod in printstream class
 
Is This Answer Correct ?    37 Yes 14 No
Mohanjayaseelan
 
  Re: define System.out.println(); what is the meaning!
Answer
# 6
System is class in java.lang package

out is a static member of type PrinStream class(java.io)
declared in the System class.static members of a class can
be accessed directly by classname that's why System.out.

println is a method in PrintStream class.out is of type
PrintStream that's why you access println w.r.t out.

why this big statement? because here no need to import any
package, like you include a header file in c or
c++.java.lang is the default package.
 
Is This Answer Correct ?    50 Yes 7 No
P.nandakishore
 
  Re: define System.out.println(); what is the meaning!
Answer
# 7
System.out.println( );

1.The System class contains several useful class fields and
methods. It cannot be instantiated.
2.System class has field out of type PrintStream class.
3.println() is a method in PrintStream class.
 
Is This Answer Correct ?    8 Yes 8 No
Amar
 
  Re: define System.out.println(); what is the meaning!
Answer
# 8
in java system is predefine class that provides access to
the system.

in java out means,out is the output stream that is
connected to the console.

in java println is a one method which is print the statment.
 
Is This Answer Correct ?    13 Yes 6 No
Amit J Bhavsar
 
  Re: define System.out.println(); what is the meaning!
Answer
# 9
System is contain class like console
out is refer printstream
println is refer pt also its contain new line
 
Is This Answer Correct ?    5 Yes 5 No
Rohit
 
  Re: define System.out.println(); what is the meaning!
Answer
# 10
System- public final class System extends Object

The System class contains serveral useful class
fields and methods.it cannot be instantiated

out-

The out variable in the System class refers to (points
to) an instance of the PrintStream class (a PrintStream
object) which is automatically instantiated when the System
class is loaded into the application.

println()-the println() methods in class PrintStream.

System.out.prinln("HI DILIP ");

This statement invokes the println() method of an object of
the PrintStream class which is referred to (pointed to) by
the variable named out which is a class variable of the
System class.
 
Is This Answer Correct ?    13 Yes 3 No
Dilip Yadav
 

 
 
 
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If I will write String s=new String("XYZ"); String s1=new String("XYZ"); if(s.equals(s1)){ sop("True"); } else{ sop("False"); } This program will give me "True". But When I am creating my own class suppose class Employee{ public Employee(String name); } Employee e= new Employee("XYZ"); Employee e1 = neew Employee("XYZ"); if(e.equals(e1)){ sop("True"); } else{ sop("False"); } Then it will give the output as "False". Can I know what is happening internally?   4
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