public class Main {
public static void testFun
(String str
) { if (str == null || str.length() == 0) {
System.
out.
println("String is empty"); } else {
System.
out.
println("String is not empty"); }
}
public static void main
(String [] args
) { testFun(null);
}
}
cHVibGljIGNsYXNzIE1haW4gewogICAgIHB1YmxpYyBzdGF0aWMgdm9pZCB0ZXN0RnVuKFN0cmluZyBzdHIpIHsKICAgICAgICAgaWYgKHN0ciA9PSBudWxsIHx8IHN0ci5sZW5ndGgoKSA9PSAwKSB7CiAgICAgICAgICAgICBTeXN0ZW0ub3V0LnByaW50bG4oIlN0cmluZyBpcyBlbXB0eSIpOwogICAgICAgICB9IGVsc2UgeyAKICAgICAgICAgICAgIFN5c3RlbS5vdXQucHJpbnRsbigiU3RyaW5nIGlzIG5vdCBlbXB0eSIpOwogICAgICAgICB9CiAgICAgfQogICAgIHB1YmxpYyBzdGF0aWMgdm9pZCBtYWluKFN0cmluZyBbXSBhcmdzKSB7CiAgICAgICAgIHRlc3RGdW4obnVsbCk7CiAgICB9Cn0=