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JavaPԇ}Ŀ:Static Nested Class Inner ClassIJͬfԽԽ(Pԇ}Ŀеĺܻ\y(tng))
JavaPԇ}Ŀ:&&&ą^(q)e
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JavaPԇ}Ŀ:HashMapHashtable`^(q)e
JavaPԇ}Ŀ:Collection Collectionsą^(q)e
JavaPԇ}Ŀ:ʲôrassert
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JavaPԇ}Ŀ:GCʲô? ʲôҪGC?
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JavaPԇ}Ŀ:String s = new String(“xyz”);(chung)ˎׂString Object?
JavaPԇ}Ŀʮһ:Math.round(11.5)춶? Math.round(-11.5)춶?
JavaPԇ}Ŀʮ:short s1 = 1; s1 = s1 + 1;ʲôe? short s1 = 1; s1 += 1;ʲôe?
Pԇ}ĿǺ׃B(ti)ҪŰĜʂ
JavaPԇ}Ŀʮ:sleep() wait() ʲô^(q)e?
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JavaPԇ}Ŀʮ:JavaЛ]g(sh)oto?
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