how to make substring a string in concern with length

hello frds,

i am in need of a very basic clarification.

i have a String like

String st="abcdefg";

String st1=st.substring(0,2);

String st2="ab"

i am getting st1="ab" like what need

but the when i compare st1 and st2 its not returning true (but it shows the same values while debugging)

its because the st1 object is contains length greater that st2.

i tried st1.trim() also

any help

thanks

[465 byte] By [LoveOpensourcea] at [2007-11-27 8:57:00]