PART 1: EXHIBIT 11.01 JSB FINANCIAL, INC. AND SUBSIDIARY STATEMENT RE: COMPUTATION OF PER SHARE EARNINGS (Unaudited, In Thousands, except per share amounts) Year Ended Three Months Ended December 31, December 31, 1998 1997 1998 1997 ---- ---- ---- ---- Basic earnings per share: - ------------------------- Basic weighted average common shares 9,793 9,858 9,582 9,912 Net Income $44,388 $37,090 $10,161 $14,979 Basic earnings per common share $4.53 $3.76 $ 1.06 $ 1.51 Diluted earnings per share: - --------------------------- Weighted average common and dilutive potential shares 10,074 10,190 9,820 10,243 Net Income $44,388 $37,090 $10,161 $14,979 Diluted earnings per common share $4.41 $3.64 $1.03 $ 1.46