StringBuilder

package stringBuilder;
import java.lang.String;

public class My
{

public static void main(String[] args)
{

StringBuilder sb = new StringBuilder();
sb.append("abc");

}

}

StringBuilder class is not regognised in my eclipse
i am using helios eclipse,i hope it is the latest one

The version of Eclipse, or indeed whether you use an IDE or not, is irrelevent here.

What is the actual error you're getting?

Are you sure the error is not actually caused by your use of the stringBuilder package? Do you have your files set up correctly?

And why import java.lang.String ??

i have set up all the files correctly,then how does the error occured

hello sir i want to know the below doubts

package basics;

public class Mgr
{

public static void main(String[] args)
{

int all[] = new int [10];
System.out.println(all);
System.out.println(all[1]);

}

}
output
[I@1242719c
0

Hi
i want to know the memory addresses of each element in the array
here i am printing System.out.println(all);

if all is starting element`s memory address of the array all[].?
then how to know the remaining elements memory addresses which are in the array all[]

more ever the address [I@1242719c its keep on changing when ever i compile for the next time to [I@1242719c1,,,,i want to know the reason why it happens so

Thanks in advance
Daya

Is your original problem solved?
If so you might want to say what the problem was and mark the thread as solved, then open a new one with your new problem.