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PԇJavaPԇ}Ŀ

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PԇJavaPԇ}Ŀ

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JavaPԇ}Ŀ:&&&ą^(q)e

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JavaPԇ}Ŀ:HashMapHashtableą^(q)e



JavaPԇ}Ŀ:Collection Collectionsą^(q)e

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JavaPԇ}Ŀ:ʲôrassert

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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]goto?

PԇJavaPԇ}ĿP£

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