Displaying a string

[ahmee]

here is my code i dont understand why it doesnt print me anything.....

class StringDemo
{
public static void main(String[] args)
{
String s1,s2,s3,output;

s1=new String("hello");
s2=new String("hello guys");
s3=new String("happy birthday");

output="s1 = " +s1+ "\ns2 = " +s2+  "\ns3" +s3+;

}
}

help me not getting s1,s2,s3

[justwantananswer]

You code just created four String objects and did nothing more. If you want to print something, you need to use System.out.prin tln(). i.e.

System.out.prin tln(ouput);

By the way, do not write the following code:

s1 = new String("hello") ;

Although it works, it is not a good practice. Just write the following is enough:

s1 = "hello";

Try to read articles about "immutable" , "string constant", etc.

[ahmee]

i also use system.out.prin tln method but it give error that + operator not recognized

[rethab]

the last character on the line where you initialize 'output' is a +. remove it!