更多"有如下程序: public class MethTest { "的相关试题:
[单项选择]有如下程序:
public class MethTest
static int Var1=100;
int Var2=200;
public static void main(String args[])
Var1=10;
MethTest Obj1=new MethTest( );
MethTest Obj2=new MethTest( );
Obj1.Var1 ++;
System.out.println(Obj1.Var1);
Obj2.Var1 ++;
System.out.println(Obj2.Var1);
MethTest.Var1 ++;
System.out.println(Obj1.Var1);
Obj1.Var2 ++;
System.out.println(Obj1.Var2);
0bj2.Var2 ++;
System.out.println(Obj2.Var2);
程序的运行结果为( )。
A. 11
B. 101
C. 11
D. 10
[单项选择]有如下程序; public class MethTest { static int Varl=100; int Var2=200; public static void main(String args[]) { Varl=10; MethTest Obj1=new MethTest( ); MethTest Obj2=new MethTest( ); Obj1.Varl++; System.out.println(Objl.Varl); Obj2.Varl++; System.out.println(Obj2.Varl); MethTest.Varl++; System.out.println(Objl.Varl); Obj1.Var2++; System.out.println(Obj1.Var2); Obj2.Var2++; System.out.println(Obj2.Var2); } } 程序的运行结果为( )。
A. 11 12 13 201 201
B. 101 102 103 201 201
C. 11 12 13 201 202
D. 10 10 10 201 201
[单项选择]有如下程序;
public class MethTest
static int Varl=100;
int Var2=200;
public static void main(String args[])
Varl=10;
MethTest Obj1=new MethTest( );
MethTest Obj2=new MethTest( );
Obj1.Varl++;
System.out.println(Objl.Varl);
Obj2.Varl++;
System.out.println(Obj2.Varl);
MethTest.Varl++;
System.out.println(Objl.Varl);
Obj1.Var2++;
System.out.println(Obj1.Var2);
Obj2.Var2++;
System.out.println(Obj2.Var2);
程序的运行结果为( )。
A. 11
B. 101
C. 11
D. 10
[单项选择]有如下程序段:
public class Parent
public int addValue (int a,int b)
int s;
s=a+b;
return 3;
class Child extends Parent
则下列选项中,可以正确加入类Child中且父类的方法不会被覆盖的是( )。
A. int addValue (int a,intb) //do something...
B. public void addValue() //do something...
C. public int addValue (int a,intb)throws MyException //do something...
D. public float addValue (int a,int b,float b=1.0) //do someting...
[单项选择]下面程序的运行结果为( )。
class A
static int n;
public:
A( )n=1;
A(int num)n=num;
void print( )cout<<n;
A::n=0;
void main( )
A a,b(2);
a.print( );
b.pint( );
A. 12
B. 11
C. 22
D. 21
[单项选择]有如下类定义:
class Point
private:
static int how_many;
;
______how_many=0;
要初始化Point类的静态成员how_many,下画线处应填入的内容是______。
A. int
B. static int
C. int Point::
D. static int Point::
[填空题]阅读并完成程序。
public class Class27
int m,n;
public______
public______m=a;
public static void main(String args[])
Class27 t1,t2;
int j=0;
t1=new Class27( );
t2=new Class27(j);
[单项选择]有如下程序
public class Test
int a,b;
Test ( )
a = 100;
b = 200;
Test(int x, int y)
a = x;
b = y;
public static void main(String args[])
Test Obj1 = new Test(12,45);
System.out.println("a = "Obj1.a+" b = "+Ob31.B) ;
Test Obj1 = new Test( );
System.out.println("a = "Obj1.a+" b = "+Obj1.B) ;
程序的运行结果为( )。
A. a=100 b=200
B. a=12 b=45
C. a=12 b=200
D. a=100 b=45
[单项选择]有如下程序
public class Sun
public static void main(String args[ ])
int x=1,a=0,b=0;
switch(x)
case 0:b++;
case 1:a++;
case 2:
a++;
b++;
System.out.println("a="+a+","+"b="+B) ;
该程序的输出结果是( )。
A. a=2,b=1
B. a=1,b=1
C. a=1,b=0
D. a=0,b=0
[单项选择]有如下程序
public class Sun
public static void main (String args[ ])
int a=2, b=1, c=2;
if (a<B)
if (b<0)
if (c<0)
c=0;
else
c++;
System. out.println(C) ;
上述程序的运行结果是( )。
A. 0
B. 1
C. 2
D. 3
[单项选择]执行如下程序:
public class Test
public static void main (String args[])
int x=1,a=0,b=0;
switch (x)
case 0: b++;
case 1: a++;
case 2: a++;b++;
System.out.println("a=" +a ",b=" +b);
该程序的输出结果是( )。
A. a=2,b=1
B. a=1,b=1
C. a=1,b=0
D. a=2,b=2
[单项选择]有如下程序:
public class MethLoad
public static void main(String args[])
MethLoad classObj = new MethLoad( );
classObj.methtest(4);
classObj.methtest(4.0);
void methtest(double D)
double sum = 2*d;
System.out.println("The result is:"+sum);
void methtest(int n)
int sum = 4*n;
System.out.println("The result is:"+sum);
程序的运行结果为( )。
A. The result is:16
B. The result is:8.0
C. The result is:8
D. The resuR is:16.0