import java.util.*;
import java.lang.*;
import java.util.regex.*;
class Ideone
{
{
String dano
= "UPDATE t1 SET A' = '1' WHERE A = 'firefly';"; System.
out.
println(dano.
replace("'",
"\\'")); System.
out.
println(dano.
replaceAll("'", Matcher.
quoteReplacement("\\'"))); }
}
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