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r(sh)g2024-10-08 11:08:40 Yϴȫ ҪͶ
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JavaPԇ}Ŀ:&&&ą^(q)e

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JavaPԇ}Ŀ:GCʲô? ʲôҪGC?

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JavaPԇ}Ŀ:String s = new String(“xyz”);(chung)ˎׂ(g)String Object?

JavaPԇ}Ŀʮһ:Math.round(11.5)춶? Math.round(-11.5)춶?

JavaPԇ}Ŀʮ:short s1 = 1; s1 = s1 + 1;ʲôe(cu)? short s1 = 1; s1 += 1;ʲôe(cu)?

Pԇ}ĿǺ׃B(ti)ҪŰĜ(zhn)

JavaPԇ}Ŀʮ:sleep() wait() ʲô^(q)e?

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JavaPԇ}Ŀʮ:JavaЛ](mi)g(sh)oto?

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