Public class Test{Public static void main(String args[]){System.out.println((3>2)?4:5);}
Public class Test
{
Public static void main(String args[])
{
System.out.println((3>2)?4:5);
}
}
其运行结果是()
A、2
B、3
C、4
D、5
Public class Test
{
Public static void main(String args[])
{
System.out.println((3>2)?4:5);
}
}
其运行结果是()
A、2
B、3
C、4
D、5
第1题
在下列源代码文件Test.java中,哪个选项是正确的类定义?
A.public class test{ public int x=0; public test(int x ) { this.x=x; } }
B.public class Test { public int x=0; public Test(int x ) { this.x=x; } }
C.public class Test extends T1 T2 { public int x=0; public Test(int x){ this.x=x; } }
D.protected class Test extends T2 { public int x=0; public Test(int x) { this.x=x; } }
第2题
3下列代码中,将引起一个编译错误的行是()。 1)public class Test{ 2)int m,n; 3)public Test(){} 4)public Test(int a){m=a;} 5)public static void main(String args[]){ 6)Test t1,t2; 7)int j,k; 8)j=0; k=0; 9) t1=new Test(); 10)t2=new Test(j,k); 11)} 12)}
A.第3行
B.第5行
C.第6行
D.第10行
第3题
找错:
#include <string.h>
#include <stdio.h>
class Base
{
private:
char * name;
public:
Base(char * className)
{
name = new char[strlen(className)];
strcpy(name, className);
}
~Base()
{
delete name;
}
char * copyName()
{
char newname [256];
strcpy(newname, name);
return newname;
}
char * getName()
{
return name;
37
}
static void print(Base base)
{
printf("name: %s\n" , base.name);
}
};
class Subclass : public Base
{
public:
Subclass(char * className) : Base(className)
{
}
};
int main()
{
Base * pBase = new Subclass("test");
Base::print(*pBase);
printf("name: %s\n", pBase->getName());
printf("new name: %s\n", pBase->copyName());
return 0;
}
第4题
A.package testpackage; public class Test{ }
B.import javi*; package testpackage; public class Test{ }
C.import jav*; class Person{} public class Test{ }
D.import javi*; import javaw*; public class Test { }
第5题
A.
class Test implements Runnabte{
public void run(){}
public void someMethod(){}
}
B.
class Test implements Rnuuable{
public void run();
}
C.
class Test implements Rnuuable{
public void someMethod();
}
D.
class Test implements Rnuuable{
public void someMethod();{}
}
第6题
A.public class test{
B.public class Test{ public int x=0;public int x=0; public test (intx) public Test (int x){ {this.x=x; this.x=x;} }} }
C.public class Test extends T1,T2{
D.protected class Test extends T2{ public int=0;public int x=0; public Test(int x){Public Test (int x){ this.x=x;this.x=x: }} }}
第7题
A.class Test implements Runnable{ public void run(){ } public void someMethod(){ } }
B.class Test implements Runnable{ public void run(); }
C.class Test implements Runnable{ public void someMethod(); }
D.class Test implements Runnable{ public void someMethod();{ } }
第8题
下面的Java源文件代码片断正确的是______。
A.package testpackage;
public class Test{//do something…}
B.import java.io.*;
package testpackage;
public class Test{//do something…}
C.import java.io.*;
class Person{//do something…)
public class Test{//do something…}
D.importjava.io.*;
importjava.awt.*;
public class Test{//do something…}
第9题
A.public class Test{}
B.public abstract class Interface{}
C.public interface Test{}
D.public class T implements MouseListener{}
第10题
A.package testpackage; public class Test{ }
B.import java.io.*; package testpackage; public class Test{ }
C.import java.i.*; class Person{} public class Test{ }
D.import java.io.*; import java.awt.*; public class Test { }
第11题
A.
class Test implements Runnable{
public void run( ){ }
public void someMethod[ ] { }
}
B.
class Test implements Runnable{
public void run();
}
C.
class Test implements Runnable{
public void someMethod[];
}
D.
class Test implements Runnable{
public void someMethod(){ }
}
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