[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f3t1Qy5jo1V1BGFW5ZHhjbYf40_7sFNcyYAhXUsfHyps":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":31,"type":32},[],"2025-06-17 02:22:54",202271192,[8,9,10,11],"字节流","字符流","对象输出流","数据流",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},59,"16ac35b83a21329409a3d9d1df63ee18","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F646115e0e5ecabc4dbd7c486e22acbf3.jpg","Java程序设计--软件23","work_44247821","一般热身——小HIIT","在Java语言中,ObjectOutputStream是指( )",[21,33,43,52,61,70,78,87,90,98],{"answer":22,"createTime":23,"id":24,"options":25,"question":30,"source":31,"type":32},[],"2025-06-17 02:22:52",202271184,[26,27,28,29],"前者带有缓冲,后者没有","前者是块读写,后者是字节读写","二者没有区别,可以互换使用","每次读写的字节数不同","字符流与字节流的区别在于","v1",0,{"answer":34,"createTime":35,"id":36,"options":37,"question":42,"source":31,"type":32},[],"2025-06-17 02:22:53",202271185,[38,39,40,41],"File","PrintWriter","Scanner","System","下面哪个类包含方法,能够检查一个文件是否存在?()",{"answer":44,"createTime":35,"id":45,"options":46,"question":51,"source":31,"type":32},[],202271186,[47,48,49,50],"RandomAccessFile()","OutputStream()","DataOutputStream()","None of the above","下面哪个I\u002FO类可以用来添加或修改一个文件的内容?()",{"answer":53,"createTime":35,"id":54,"options":55,"question":60,"source":31,"type":32},[],202271187,[56,57,58,59],"ABCABC","ABC","Test","Test Test","下面的程序创建了一个文件输出流对象,用来向文件test.txt中输出数据,假设程序当前目录下不存在文件test.txt,编译下面的程序Test.java后,将该程序运行两次,则文件test.txt 的内容是( ). import java.io.*; public class Test { public static void main(String args[]) { try { String s="ABC"; byte b[]=s.getBytes(); FileOutputStream file=new FileOutputStream("test.txt",true); file.write(b); file.close(); } catch(IOException e) { System.out.println(e.toString()); } } }",{"answer":62,"createTime":35,"id":63,"options":64,"question":69,"source":31,"type":32},[],202271188,[65,66,67,68],"FileInputStream in=new FileInputStream("file.dat"); in.skip(9); int c=in.read()","FileInputStream in=new FileInputStream("file.dat"); in.skip(10); int c=in.read()","FileInputStream in=new FileInputStream("file.dat"); int c=in.read()","RandomAccessFile in=new RandomAccessFile("file.dat"); in.skip(9); int c=in.readByte()","要从文件"file.dat"文件中读出第10个字节到变量c中,下列哪个方法适合( )",{"answer":71,"createTime":35,"id":72,"options":73,"question":77,"source":31,"type":32},[],202271189,[74,75,76,38],"FileInputStream","FileReader","FileWriter","在Java中,( )类提供定位本地文件系统,对文件或目录及其属性进行基本操作",{"answer":79,"createTime":35,"id":80,"options":81,"question":86,"source":31,"type":32},[],202271191,[82,83,84,85],"Writer","DataOutput","OutputStream","ObjectOutput","Java中类0bjectOutputStream支持对象的写操作,这是一种字节流,它的直接父类是( )",{"answer":88,"createTime":5,"id":6,"options":89,"question":19,"source":31,"type":32},[],[8,9,10,11],{"answer":91,"createTime":5,"id":92,"options":93,"question":97,"source":31,"type":32},[],202271193,[94,95,96,74],"BufferedReader","DatalnputStream","DataOutputStream","在读字符文件Employee.dat时,使用该文件作为参数的类是( )",{"answer":99,"createTime":5,"id":100,"options":101,"question":106,"source":31,"type":32},[],202271195,[102,103,104,105],"File类能够存储文件","File类能够读写文件","File类能够建立文件","File类能够获取文件目录信息","下列叙述中,错误的是"]