format - Replace string where it has .rpt -


i want read string in java has like

xyz.rpt abcde.img erhteds.doc aqwer.rpt

and modify string has .rpt in it. if string has .rpt @ end need change .doc

output:  xyz.doc abcde.img erhteds.doc aqwer.doc

the following code should replace last occurance of '.rpt' '.doc' if read line line

 stringbuilder b = new stringbuilder(yourstring);     b.replace(yourstring.lastindexof(".rpt"), yourstring.lastindexof(".rpt") + 1, ".doc" );     yourstring = b.tostring();

note throw exceptions if string doesn't contain '.rpt'


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