给定程序如下public static void main(String args[]) {Float f=new Float(4.2f);Float c;Doub
A.equals(d)
B.c==d
C.equals(f)
D.c=f
A.equals(d)
B.c==d
C.equals(f)
D.c=f
第1题
A. throws IOException
B. throw IOException
C. throws Exception
D. throws RuntimeException
第2题
class A
{
int a;
A(int b)
{a=b;}
void show()
{System.out.println(“a=”+a);}
}
public class Class1
{
public static void main (String args[])
{
A bj=new A(12345);
boolean b=false;
char ch=97;
obj.show();
System.out.println(“b=”+b+”/tch=”+ch);
}
}
第3题
写出以下程序的运行结果。public class Test2 {public static void main(String args[ ]){int i,j;int a[]={17,91,65,35,28};for (i = 0; i < a.length-1; i++ ) {int k = i;for(j = i; j < a.length; j++ )if (a[j]>a[k] )k = j;int temp =a[i];a[i] = a[k];a[k] = temp;}for (i =0; i<a.length; i++ )System.out.print(a[i]+" ");System.out.println();} }
第4题
class A{
public static int max(int a,int b){
return a>b?a:b;
}
public static void main(String args[]){
System.out.println(“max=”+max(5,23));
}
}
第5题
A.static int MAX =100
B.public int MAX =100
C.final public int MAX =100
D.public final static int MAX =100
第7题
A.0
B.1
C.2
D.4
第10题
A.static void method()
B.public void method()
C.final void method()
D.abstract void method()
第11题
A.abstract class Cat: Animal
{
abstract public void Move();
}
B.abstract class Cat: Animal
{
virtual public void Move(){Console.Write(Console.Write("Move!");)}
}
C.abstract class Cat: Animal
{
public void Move(){Console.Write(Console.Write("Move!");)};
}
D.abstract class Cat: Animal
{
public void Eat(){Console.Write(Console.Write("Eat!");)};
}