PART 1: EXHIBIT 11.00 JSB FINANCIAL, INC. AND SUBSIDIARY STATEMENT RE: COMPUTATION OF PER SHARE EARNINGS (In Thousands, except per share amounts) Three Months Ended March 31, ------------------ 1999 1998 ---- ---- Basic earnings per share: - ------------------------- Basic weighted average common shares 9,385 9,886 Net Income $7,479 $7,664 Basic earnings per common share $.80 $.78 Diluted earnings per share: - --------------------------- Weighted average common and dilutive potential shares 9,613 10,202 Net Income $7,479 $7,664 Diluted earnings per common share $.78 $.75