static void test() { try { String x=null; System.out.print(x.toString() +“ “); } finally { System.out.print(“finally “); } } public static void main(String[] args) { try { test(); } catch (Exception ex) { System.out.print(”exception “); } } What is the result?()
第1题:
根据输出结果填空完成下面程序。
include<iostream.h>
class Test
{
private:
static int val;
int a;
public:
static int func( );
void sfunc(Test &r);
};
______//初始化静态变量val
int Test::func( )
{
return val++;
}
void Test::sfunc(Test &r)
{
r.a=125;
cout<<"Result3="<<r.a;
}
void main( )
{
cout<<"Resultl="<<Test::func( )<<endl;
Test A;
cout<<"Result2="<<A.fune( )<<endl;
A. sfunc(A);
}
输出结果为:
Result1=201
Result2=202
Result3=125
第2题:
已知有下列类的说明,则下列哪个语句是正确的?public class Test { private float f=1.0f; int m=12; static int n=1; public static void main(String arg[]) { Test t= new Test(); }}
A.t.f;
B.this. n
C.Test.m;
D.Test.f;
第3题:
已知有下面的类说明: public class Test4 { private float f=1.0f; int m=12; static int n=1; public static void main(String args[]) { Test4 e=new Test4(); } } 在main()方法中,下面哪个的使用是正确的? ( )
A.e.f
B.this.n
C.Test4.m
D.Test4.f
第4题:
下列程序实现对ZIP文件file.zip的检索,在横线处 填入正确的语句( )。 package test; importjava.io.*; import java.util.*; import java.util.zip.*; public class Exam { public static void main(String[]args){ try{ FileInputStream fis=new FileInputStream("test/file. zip"); ZipInputStream zis=new ZiplnputStream(fis); ZipEntry an; while(( )!=null){ en.getName; zis.closeEntry; } zis.close: } catch(Exception e){ printStackTrace; } } }
A.en=zis.getNextEntry
B.en= =zis.getNextEntry
C.en=zis.getEntry
D.zis.getNextEntry
第5题:
下列程序的输出结果是 class Demo { void test( ) { Systeme.out.pnnt("NO");} void test(int i) { System.out.print(a);} void test(int a,int b) { System.out.print(a+b);} } class Test { public static void main(String args[ ] ) { Demo de=new Demo( ); de.test( ); de.test(5); de.test(6,8); } }
A.No 5 6 8
B.5 6 8 No
C.No 5 14
D.8 6 No 5
第6题:
下列程序的输出结果是 ( ) class Derao { void test() { Systeme.out.print("NO");} void test (int i) {System.out.print(a);} void test(int a,int b) {System.out.print(a+b);} } class Test { public static void main(String args[]) { Demo de=new Demo(); de.test(); de.test5.; de.test(6,8); } }
A.No568
B.568No
C.No514
D.86No5
第7题:
static void test() throws RuntimeException { try { System.out.print(”test “); throw new RuntimeException(); } catch (Exception ex) { System.out.print(”exception “); } } public static void main(String[] args) { try { test(); } catch (RuntimeException ex) { System.out.print(”runtime “); } System.out.print(”end “); } What is the result?()
第8题:
Public class test ( Public static void stringReplace (String text) ( Text = text.replace (‘j’ , ‘i’); ) public static void bufferReplace (StringBuffer text) ( text = text.append (“C”) ) public static void main (String args[]} ( String textString = new String (“java”); StringBuffer text BufferString = new StringBuffer (“java”); stringReplace (textString); BufferReplace (textBuffer); System.out.printLn (textString + textBuffer); ) ) What is the output?()
第9题:
test end
Compilation fails.
test runtime end
test exception end
A Throwable is thrown by main at runtime.
第10题:
第11题:
end
Compilation fails.
exception end
exception test end
A Throwable is thrown by main.
An Exception is thrown by main.
第12题:
null
finally
null finally
Compilation fails.
finally exception
第13题:
A.t.f
B.this.n
C.Test.m
D.Test.n
第14题:
已知有下列类的说明,则下列( )语句是正确的。 publicClass Test{ private float f=1.0f; int m=12; static int n=1: public static void main(Stringarg[]){ Test t=new Test(): } }
A.t.f;
B.this.n;
C.Test.m;
D.Test.f;
第15题:
使下列程序正常运行并且输出“Hello!”,横线处应填写的内容是( )。 class Test { public static void main(string[]args){ Test t=new Test; start; } Public void run{ System.out.println("Hello!¨); )
A.extends Thread
B.extends Float
C.extends Iostream
D.extends Stdio
第16题:
下列代码的执行结果是( )。
public class Test{
public int aMethod( ){
static int i=0;
i++;
System.out.println(i):
}
public static void main (String args[]){
Trest test=new Test ( );
test aMethod( ):
}
}
A.编译错误
B.0
C.1
D.运行成功,但不输出
B.
C.
D.
第17题:
下列程序实现对ZIP文件file.zip的检索,在横线处填入正确的语句 package test; import java.io.*: import java.util.*; import java.util.zip.*; public class Exam { public static void main(String[])args){ try{ FileInputStream fis=new FileInputStream("test/file.zip"); ZipInputStreamzis=new ZipInputStream(fis); ZipEntry en; while ((_____)!=null){ en.getName(); zis.closeEntry(); } zis.close(); } catch(Exception e) { e.printStackTrace(); } } }
A.en = zis.getNextEntry()
B.en = zis.getNextEntry()
C.en = zis.getEntry()
D.zis.getNextEntry()
第18题:
A. 7
B. 6
C. 5
D. 8
第19题:
Public class test ( Public static void main (String args[]) ( System.out.printIn (6 ^ 3); ) ) What is the output?()
第20题:
public class Test { public int aMethod() { static int i = 0; i++; return i; } public static void main (String args[]) { Test test = new Test(); test.aMethod(); int j = test.aMethod(); System.out.println(j); } } What is the result?()
第21题:
0
1
2
Compilation fails.
第22题:
第23题:
Compilation will fail.
Compilation will succeed and the program will print “0”
Compilation will succeed and the program will print “1”
Compilation will succeed and the program will print “2”