题目内容
（请给出正确答案）
分析以下代码。
public static void test(string ConnectString)
{
System.Data.OleDb.OleDbConnection conn = new System.Data.OleDb.OleDbConnection();
conn.ConnectionString = ConnectString;
try
{
conn.Open();
…….
}
catch(Exception Ex)
{
MessageBox.Show(Ex.ToString());
}
finally
{
if (!conn.State.Equals(ConnectionState.Closed))
conn.Close();
}
}
请问
1)以上代码可以正确使用连接池吗？
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更多“分析以下代码。public static void test…”相关的问题
A.1,1
B.1,1.0
C.1.0,1
D.1.0,1.0
A.0
B.1
C.2
D.4
程序改错
class mml
{
private:
static unsigned int x;
public:
mml(){ x++; }
mml(static unsigned int &) {x++;}
~mml{x--;}
pulic:
virtual mon() {} = 0;
static unsigned int mmc(){return x;}
......
};
class nnl:public mml
{
private:
static unsigned int y;
public:
nnl(){ x++; }
nnl(static unsigned int &) {x++;}
~nnl{x--;}
public:
virtual mon() {};
static unsigned int nnc(){return y;}
......
};
代码片断:
mml* pp = new nnl;
..........
delete pp;
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);
}
}
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();} }
A.public final writeLog(String msg)
B.public final abstract void writeLog(String msg)
C.public static final void writeLog(String msg)
D.public static abstract void writeLog(String msg)
A.Not equal
B.Equal
C.无输出
D.编译出错
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));
}
}
程序阅读：public class test
{
public static void main(String argv[])
{
boolean b1 = true;
if((b1 ==true) || place(true))
{
System.out.println("Hello Crowle");
}
}
public static boolean place(boolean location)
{
if(location==true)
{
System.out.println("Borcetshire");
}
System.out.println("Powick");
return true;
}
}
