更多"在程序的下划线处应填入的选项是( )。 publicclassTe"的相关试题:
[单项选择]在程序的下划线处应填入的选项是()。
publicclassTest______
publicstaticvoidmain(Stringargs[])
Testt=newTest( )
Threadtt=newThread(t);
tt.start( );
publicvoidmn( )
for(inti=0;i<5;i++)
System.out.println("i="+i);
A. implementsRunnable
B. extendsThread
C. implementsThread
D. extendsRunnable
[单项选择]
下列程序的功能是将一个整数数组写入二进制文件。在程序的下划线处应填入的选项是()
import java.io.*;
public class XieShuzu{
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
dos. _____(myArray[i]);
dos.close( );
System.out.println("已经将整数数组写入二进制文件:ints.dat");
}catch(IOException ioe)
{System.out.println("IO Exception");}
}
}
A. writeArray
B. writeByte
C. writeInt
D. writeDouble
[单项选择]下列程序的功能是将一个整数数组写入二进制文件,在程序的下划线处应填入的选项是()。
importjava.io.*;
publicclassXieShuzu
publicstaticvoidmain(String[]a)
int[]myArray=(10,20,30,40);
try
DataOutputStreamdos=
newDataOu中utStream(new
FileOutputStream("ints.dat"));
for(inti=O;i<myArray.length;i++)
dos.______(myArray[]);
dos.close( );
System.out.println("已经将整数数组写入二进制文件:ints.dat"):
catch(IOExceptionioe)
System.out.println("IOExcepr_on");
A. writeArray
B. writeByte
C. writeInt
D. writeDouble
[单项选择]下列程序的功能是将一个整数数组写入二进制文件,在程序的下划线处应填入的选项是( )。
importjava.io.*;
publicclassXieShuzu
publicstaticvoidmain(String[]a)
int[]myArray=(10,20,30,40);
try
DataOutputStreamdos=
newDataOu中utStream(new
FileOutputStream("ints.dat"));
for(inti=O;i<myArray.length;i++)
dos.______(myArray[]);
dos.close( );
System.out.println("已经将整数数组写入二进制文件:ints.dat"):
catch(IOExceptionioe)
System.out.println("IOExcepr_on");
A. writeArray
B. writeByte
C. writeInt
D. writeDouble
[单项选择]在下列代码的下划线处应填入的内容是
public class FirstSample {
public static void main(________args[]) {
System.out.println("你好!");
}
}
}
A. staff
B. double
C. int
D. String
[单项选择]以下程序调用findmax函数求数组中值最大的元素在数组中的下标,下划线处应填入( )。
include
findmax(int *s,int t,int *k)
int p;
for(p=0,*k=p;p<t;p++)
if(s[p]>s[*k])______;
return *k;
void main( )
int a[10],i,k;
for(i=0;i<10;i++)scanf("%d”,&a[i]);
findmax(a,10,&k);
printf("%d,%d/n",k,a[k]);
A. k=p
B. *k=p-s
C. k=p-s
D. *k=p
[单项选择]下列代码的下划线处应填入的方法名是
import java.applet.*;
import java.awt.*;
public class Hello extends Applet {
public void ________(Graphics g){
g.drawString("How are you!", 10, 10);
}
}
A. repaint
B. println
C. paint
D. show
[单项选择]在下面附属类方法中的下划线处应填入的正确参数是public void writeData( )throws IOException{ GregorianCalendar calendar=new GregorianCalendar( ); calendar,setTime(hireDay); out.println(name+"|" +salary+"|" +calendar.get(Calendar.YEAR)+"|" +(calendar.get(Calendar.MONTH)+1)+"|" +calendar.get(Calendar.DAY_OF_MONTH)):}
A. Employee[]e
B. "employedat"
C. PrintWriter out
D. BufferedWriter
[单项选择]
下面程序的功能是输出以下形式的金字塔图案是:
*
***
*****
*******在下划线处应填入的是()
main( )
{int i,j;
for(i=1;i<=4;i++)
{for(j=1;j<=4-i;j++) pintf(" ");
for(j=1;j<=________;j++) pintf("*");
printf("/n");
}
}
A. i
B. 2*i-1
C. 2*i+1
D. i+2
[单项选择]要得到某目录下的所有文件名,在下列代码的下划线处应填入的内容是(两个下划线的内容相同)
________pathname = new________(args[0]);
String[] filename = pathname.list( );
A. FileInputStream
B. FileOutputStream
C. File
D. RandomAccessFile
[单项选择]下列是定义一个接口ITF的程序,在横线处应填入的选项是 ( )
public interface ITF
public static final double PI=3.14;
public( )double area(double a,double b);
A. interface
B. static
C. final
D. abstract
[单项选择]下列是定义一个接口ITF的程序,在横线处应填入的选项是( )。
public interface ITF
public static final double PI=3.14;
public ______ double area(double a,double b);
A. interface
B. static
C. final
D. abstract
[单项选择]在程序的下画线处应填入的选项是( )。
public class Test______
public static void main(String args[])
Test t=new Test( );
Thread tt=new Thread(t);
tt.start( );
public void run( )
for(int i=0;i<5;i++)
System.out.println("i="+i);
A. implements Runnable
B. extends Thread
C. implements Thread
D. extends Runnable
[单项选择]下列程序的功能是将一个整数数组写入二进制文件,在程序的下画线处应填入的选项是______。
import java.io.*;
public class XieShuzu
public static void main(String[]a)
int[]myArray=(10,20,30,40);
try
DataOutputStream dos=
new DataOutputStream(new
File( )utput Stream("ints.dat"));
for(int i=0;i<myArray.length;i++)
dos.______(myArray[i]);
dos.close( );
Svstem.out.println("已经将整数数组写入二进制文件:ints.dat");
catch(IOException ioe)
System.out0println("IOExcepr_on");
A. writeArray
B. writeByte
C. writeInt
D. writeDouble
[单项选择]在程序的下画线处应填入的选项是______。
public class Test______
public static void main(String args[])
Test t=new Test( );
Tbread tt=new Thread(t);
tt.start( );
public void run( )
for(int i=0;i<5;i++)
System.out.println("i="+i);
A. implements Runnable
B. extends Thread
C. implements Thread
D. extends Runnable
[单项选择]下面程序的功能是把316表示为两个加数的和,使两个加数分别能被13和11整除,在划线处应填入的选项是
#include<iostream.h>
Void main( )
int i=0,j,k;
doi++;k=316-13*i; while( );
j=k/11;
cout << "316=13*"<<i<<"+11*"<<j;
A. k/11
B. k%11
C. k/11=0
D. k%11=0
[单项选择]在下列程序的空白处,应填入的正确选项是()。
Importjava.io.*;
PulilcclassObjectStreamTest
Publilcstaticvoidmain(string args [])thowsIOException
ObjectOutputStream oos=new ObjectOutputStream
(newFileOutputStream(“serial.bln”));
Java.util.Dated=newJava.util.Date( );
Oos______(d);
ObjectlnputStreamois=
newObjectlnputStream(newFileOutputStream(“serial.bin”));
try
iava.util.daterestoredDate=
(Java.util.Date)ois.readObject( );
System.out.println
(“readobjectbackfromserial.binfile:”
+restoredDate);
Catch(ClassNotFoundException cnf)
System.out.println(“classnotfound”);
A. WriterObject
B. Writer
C. BufferedWriter
D. writerObject
[单项选择]在下列程序的空白处,应填入的正确选项是()。
importjava.io.*;
PublicclasswriteInt
Publicstaticvoidmain(stringl)a)
Int[]myArray=10,20,30,40;
try
DataOutputSystemdos=newDataOutputSystem
(newFileOu中utSystem(“ints.dat”));
for (int i=0;I<MYARRAY.LENGTH:I++)
dos.writeInt(myArray[i];
dos.______";
System.out.println
(“Havewritten binary flleints.dat”);
Catch(IOExceptiOniOe)
System.out.println(“IOException”);
A. start()
B. Close()
C. read()
D. write()
[单项选择]
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 oos= new ObjectOutputStream
(new FileOutputStream(“serial.bin”));
Java.util.Date d= new Java.util.Date( );
Oos (d);
ObjectInputStream ois=
new ObjectInputStream(new FileOutputStream(“serial.bin”));
try{
java.util.date restoredDate =
(Java.util.Date) ois.readObject( );
System.out.println
(“read object back from serial.bin file:”
+ restoredDate);
}
Catch (ClassNotFoundException cnf) {
System.out.println (“class not found”);
}
}
A. WriterObject
B. Writer
C. BufferedWriter
D. WriterObject