A.new InputStreamReader(new FileInputStream("1.dat")) B.new InputStreamReader(new FileReader("1.dat")) C.new InputStreamReader(new BufferedReader("1.dat")) D.new InputStreamReader("1.dat")
A.shortx[1] B.short[]y C.short[5]x2 D.shortz2[5]
A._myString B.$?a+b C.myString D.9myString