PART 1: EXHIBIT 11.00 JSB FINANCIAL, INC. AND SUBSIDIARY STATEMENT RE: COMPUTATION OF EARNINGS PER SHARE (Unaudited, In Thousands, except per share amounts) Three Months Ended Nine Months Ended September 30, September 30, ------------------ ----------------- 1998 1997* 1998 1997* ---- ----- ---- ----- Basic earnings per share: - ------------------------- Basic weighted average common shares 9,830 9,871 9,864 9,840 Net income $11,377 $ 8,554 $34,227 $22,111 Basic earnings per common share $1.16 $.87 $3.47 $2.25 Diluted earnings per share: - --------------------------- Weighted average common and dilutive potential shares 10,093 10,215 10,159 10,191 Net income $11,377 $ 8,554 $34,227 $22,111 Diluted earnings per common share $1.13 $.84 $3.37 $2.17 <FN> * As required, earnings per share for 1997 have been restated for the adoption of Financial Accounting Standards Board Statement No. 128. </FN>