Import java. awt. *;
Import java. util. *;
C.lass BufferTest{
Public static void main(string args[])
Throws IOException{
F.ileOutputStream unbuf=
new FileOutputStream( “ test.one ” ) ;
B.ufferedOutputStream buf=
new ( 11 ) (new FileOutputStream( “ test.two ” ));
System.out.println( “ write file unbuffered: ” + time(unbuf) + “ ms ” );
System.out.println( “ write file buffered: ” + time(buf) + “ ms ” );
}
Static int time (OutputStream os)
Throws IOException{
D.ate then = new Date();
for (int i=0; i<50000; i++){
os.write(1);
}
}
os.close();
return(int)(()new Date()).getTime() - then.getTime());
}
[单选题]( 20 )在下列程序的空白处,应填入的正确选项是import java.io.*;Public class writeInt{Public static void main(string[ ] a) {Int[ ] myArray = {10,20,30,40};try{D.ataOutputSystem dos= new DataOutputSystem( new FileOutputSystem( “ ints.dat ” ) ) ;for ( int i=0 ; I<myArray
[单选题]( 34 )在下列程序的空白处,应填入的正确选项是Import java.io.*;Pulilc class ObjectStreamTest{Publilc static void main(string args[]) throws IOException{ObjectOutputStream s= new ObjectOutputStream(new FileOutputStream( “ serial.bin ” ));Java .util.Date d= new Java.util.D
[问答题]请在下列程序的空白处,填上适当的内容:______________
[单选题]在下面程序的空白处,应填入的正确选项是 import java.io.*; public class ObjectStreamTest { public static void main(String args[])throws IOExeeption } ObjectoutputStream os=new ObjectOutputStream(new FileOutputStream("serial.bin")); java.util.Date d=new java.util.Date()
[单选题]在下面程序的空白处,应填入的正确选项是 import java.io.*; public class writeInt { public static void main(String[]a) { int[] myArray={10,20,30,40}; try{ DataoutputStream dos=new DataoutputStream(new FileOutputStream("ints.dat")); for(int i=0;i<myArray.length;i++)dos.w
[主观题](11)设有下列程序查找并输出该数组中的最小值,请在空白处填上合适的代码,将程序补充完整。 Option Base 1 Private Sub Command1_Click() Dim arr1 Dim Min As Integer,i As Integer Arr1=Array(12,435,76,-24,78,54,866,43) Min=arr1(1) For i=2 To 8 If arr1(1)<Min Then Next i Print"最小值:";Min End Sud
[单选题]程序运行后,利用冒泡法对数组a中的数据按从小到大排序。请在空白处填上适当的内容,在横线处应填写( )。A. Form=0 To 4B. Form=0 To 4C. Form=1 To 4D. Form=1 To 4
[单选题]下面程序的输出结果是( )。 import java. awt.*; import java. applet.*; public class HelloApplet extends Applet { public void paint(Graphics g) { g.drawString("Hello World! ",20,20); } }A.20,20B.Hello World!C.编译不能通过D.以上都不对
[试题]下列程序的功能是:输入10个整数,逆序后输出。请在程序空白处填入适当语句使程序完成指定的功能。Private Sub Command2_Click()D.im i, j, k,temp, arr(11) As lntegerD.im result As StringF.or k=1 To 10arr(k) =Val (InputBox( "请输入第" & k & "个数:","数据输入窗口"))Next ki=1j = 10D.otemp=arr(i)arr(i)=ar
[试题]( 11 )下列程序的功能是统计命令行参数的个数,请在下划线处填上适当的代码。public class Length{public static void main(String args[]){System.out.println( " number of String args: " +args. ( 11 ) );}}