java loops

I am tryign to get the following to display and used for expressions.  i imported the string class. It does not seem to be working and I can not compile it. What do i have wrong?
to display:
a
ab
abc
abcd

import java.lang.String;
class test
{
public static void main(String args[])
{

for(int i=a;i>=1;i++)
{

for(int j=i;j>=1;j++)
{

System.out.print(j +" ");

}
System.out.println("");
}
}
}
pgmtklAsked:
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CEHJCommented:
>>for(int i=a;i>=1;i++)

You have not defined 'a'

You don't need to import String
0

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sriki77Commented:
Here is the program

class test
{
public static void main(String args[])
{

 for(int i='a';i<='z';i++)
 {
    for(int j='a';j<=i;j++)
    System.out.print((char)j +" ");
    System.out.println("");
 }
}
}
0
CEHJCommented:
For the output you mentioned, all you need is:


class test {
      public static void main(String args[]) {

            for (char i = 'a'; i <= 'd'; i++) {
                  for (char j = 'a'; j <= i; j++)
                        System.out.print(j + " ");
                  System.out.println("");
            }
      }
}
0
pgmtklAuthor Commented:
thanks for the help, it worked. I didnt realize i did not need to import string
0
CEHJCommented:
:-)
0
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