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public class Switch19 {
String switchPatternMatching(Object o) {
return switch (o) {
case Integer i -> String.format("int %d", i);
case Long l -> String.format("long %d", l);
case Double d -> String.format("double %f", d);
case String s -> String.format("String %s", s);
default -> o.toString();
};
}
String switchNull(Object o) {
return switch (o) {
case null, default -> "?";
};
}
String switchGuardPattern(Object o) {
return switch (o) {
case String s when s.length() > 1 -> s;
case String s -> s;
default -> o.toString();
};
}
String switchParenthesizedPattern(Object o) {
return switch (o) {
case (String s) -> s;
default -> o.toString();
};
}
}
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