getCustomerInfo()方法如下，try中可以捕获三种类型的异常，如果在该方法运行中产生了一个IOException，将会输出什么

IOException!Exception!

FileNotFoundException!IOException!

2.getCustomerInfo()方法如下,try中可以捕获三种类型的异常,如果在该方法运行中产生了一个IOException,将会输出什么结果( )。Public void getCustomerInfo() {Try {// do something that may cause an Exception} catch (java.io.FileNotFoundException ex){System.out.print("FileNotFoundException!");} catch (java.io.IOException ex){System.out.print("IOException!");} catch (java.lang.Exception ex){System.out.print("Exception!");}}(2分) 选项： A:IOException! B:IOException!Exception! C:FileNotFoundException!IOException! D:FileNotFoundException!IOException!Exception!

FileNotFoundException!IOException!Exception!

3.getCustomerInfo()方法如下，try中可以捕获三种类型的异常，如果在该方法运行中产生了一个IOException，将会输出什么结果 public void getCustomerInfo() { try { // do something that may cause an Exception } catch (java.io.FileNotFoundException ex){ System.out.print("FileNotFoundException!"); } catch (java.io.IOException ex){ System.out.print("IOException!"); } catch (java.lang.Exception ex){ System.out.print("Exception!"); } } 选项： A、IOException! B、IOException!Exception! C、FileNotFoundException!IOException! D、FileNotFoundException!IOException!Exception!

4.getCustomerInfo()方法如下，try 中可以捕获三种类型的异常，如果在该方法运行中产生了一个 IOException，将会输出什么结果（）Public void getCustomerInfo() { try{// do something that may cause an Exception} catch (java.io.FileNotFoundException ex) { System.out.print("FileNotFoundException!"); } catch (java.io.IOException ex) {System.out.print("IOException!");} catch (java.lang.Exception ex) {System.out.print("Exception!");}} 选项： A: IOException! B: IOException!Exception! C: FileNotFoundException!IOException! D: FileNotFoundException!IOException!Exception!

5.getCustomerInfo()方法如下，try中可以捕获三种类型的异常，如果在该方法运行中产生了一个IOException，将会输出什么结果（）public void getCustomerInfo() {try { // do something that may cause an Exception} catch (java.io.FileNotFoundException ex) { System.out.print("FileNotFoundException!"); } catch (java.io.IOException ex) { System.out.print("IOException!");} catch (java.lang.Exception ex) { System.out.print("Exception!");} } 选项： A、IOException! B、FileNotFoundException!IOException!Exception! C、IOException!Exception! D、FileNotFoundException!IOException!

6.getCustomerInfo()方法如下,try 中可以捕获三种类型的异常,如果在该方法运行中产生了一个IOException,将会输出什么结果( )。Public void getCustomerInfo() {Try {// do something that may cause an Exception} catch (java.io.FileNotFoundException ex){System.out.print("FileNotFoundException!");} catch (java.io.IOException ex){System.out.print("IOException!");} catch (java.lang.Exception ex){System.out.print("Exception!");}} 选项： A: IOException! B: IOException!Exception! C:FileNotFoundException!IOException! D: D•FileNotFoundException!IOException!Exception!

7.getCustomerInfo()方法如下，try中可以捕获三种类型的异常，如果在该方法运行中产生了一个IOException，将会输出什么结果（）public void getCustomerInfo() { try { // do something that may cause an Exception } catch (java.io.FileNotFoundException ex) { System.out.print("FileNotFoundException!"); } catch (java.io.IOException ex) { System.out.print("IOException!"); } catch (java.lang.Exception ex) { System.out.print("Exception!"); } }选项： A:IOException! B:IOException!Exception! C:FileNotFoundException!IOException! D:FileNotFoundException!IOException!Exception!

8.getCustomerInfo()方法如下，try块中可以捕获三种类型的异常，如果在该方法运行中产生了一个IOException，将会输出的结果是（）。 public void getCustomerInfo() { try { // do something that may cause an Exception } catch(FileNotFoundException ex) { System.out.println("FileNotFoundException!"); } catch(IOException ex) { System.out.println("IOException!"); } catch(Exception ex) { System.out.println("Exception!"); } }选项： A:IOException!; B:IOException!Exception!; C:FileNotFoundException!IOException!; D:FileNotFoundException!IOException!Exception!

9.getCustomerInfo()方法如下，try块中可以捕获三种类型的异常，如果在该方法运行中产生了一个IOException，将会输出的结果是（）。 public void getCustomerInfo() { try { // do something that may cause an Exception } catch(FileNotFoundException ex) { System.out.println("FileNotFoundException!"); } catch(IOException ex) { System.out.println("IOException!"); } catch(Exception ex) { System.out.println("Exception!"); } } 选项： A、IOException! B、IOException!Exception! C、FileNotFoundException!IOException! D、FileNotFoundException!IOException!Exception!

10.getCustomerInfo()方法如下，try中可以捕获三种类型的异常，如果在该方法运行中产生了一个IOException，将会输出什么结果（）publicvoidgetCustomerInfo(){try{//dosomethingthatmaycauseanException} catch(java.io.FileNotFoundExceptionex){System.out.print("FileNotFoundException!");} catch(java.io.IOExceptionex){System.out.print("IOException!");}catch(java.lang.Exceptionex){System.out.print("Exception!");} } 选项：IOException!#IOException!Exception!#FileNotFoundException!IOException!#FileNotFoundException!IOException!Exception!

11.假设方法unsafe() 将抛出IOException, 可以填入如下代码段第1行的选项是( )。1) 2) { if(unsafe()){//do something…} 3) else if(safe()){//do the other…} 4) } 选项： A:

public IOException methodName()

public void methodName()

public void methodName() throw IOException

12.getCustomerInfo()方法如下，try中可以捕获三种类型的异常，如果在该方法运行中产生了一个IOException，将会输出什么结果（）publicvoidgetCustomerInfo(){try{//dosomethingthatmaycauseanException}catch(java.io.FileNotFoundExceptionex){System.out.print("FileNotFoundException!");}catch(java.io.IOExceptionex){System.out.print("IOException!");}catch(java.lang.Exceptionex){System.out.print("Exception!");}} 选项： A、A）IOException! B、B）IOException!Exception! C、C）FileNotFoundException!IOException! D、D）FileNotFoundException!IOException!Exception!

public void methodName() throws IOException

try{

FileOutputStream out=new FileOutputStream(f) ;

out.write(a) ;

out.close () ;

FileInputStream in=new FileInputStream(f);byte ] tom= new byte100];

int m = in.read(tom) ;

String s=new String(tom,0, m) ;

System.out.printf("%d : %s" , m,s);

}catch (IOException e){}

}

">13.阅读以下程序，写出输出结果：

import java.io.*;

public class E{

public static void main(String args]){

int n=-1;

File f =new File("hello.txt") ;byte ] a="abcd".getBytes () ;

try{

FileOutputStream out=new FileOutputStream(f) ;

out.write(a) ;

out.close () ;

FileInputStream in=new FileInputStream(f);byte ] tom= new byte100];

int m = in.read(tom) ;

String s=new String(tom,0, m) ;

System.out.printf("%d : %s" , m,s);

}catch (IOException e){}

}

14.Java异常类（Exception）是（）的子类。选项： A:

RuntimeException

Exception

Error

Throwable

public void printMyGender(String s){

this.print();

System.out.print(s+" ");

}

class Gender{

String type="gender";

public void print(Person p){p.printMyGender(type);}

}

class Female extends Gender{

public Female(){

type="female";

}

class Male extends Gender{

public Male(){

type="male";

}

class Employee extends Person{

public void print(){

System.out.print("Employee ");}

}

class Manager extends Employee{

public void print(){

System.out.print("Manager ");}

}

public class Test{

public static ">15.import java.io.*;

class Person{

public void print(){System.out.print("Person ");}

public void printMyGender(String s){

this.print();

System.out.print(s+" ");

}

class Gender{

String type="gender";

public void print(Person p){p.printMyGender(type);}

}

class Female extends Gender{

public Female(){

type="female";

}

class Male extends Gender{

public Male(){

type="male";

}

class Employee extends Person{

public void print(){

System.out.print("Employee ");}

}

class Manager extends Employee{

public void print(){

System.out.print("Manager ");}

}

public class Test{

public static

byte ] a="abcd".getBytes();

try{ FileOutputStream out=new FileOutputStream(f);

out.write(a);

out.close();

FileInputStream in=new FileInputStream(f);

byte ] tom= new byte3];

int m = in.read(tom,0,3);

System.out.println(m);

String s=new String(tom,0,3);

System.out.println(s);

m = in.read(tom,0,3);

System.out.println(m);

s=new String(tom,0,3);

System.out.println(s);

}

catch(IOException e) {}

}

">16.以下程序的运行结果是（）。

import java.io.*;

public class E {

public static void main(String args]) {

int n=-1;

File f =new File("hello.txt");

byte ] a="abcd".getBytes();

try{ FileOutputStream out=new FileOutputStream(f);

out.write(a);

out.close();

FileInputStream in=new FileInputStream(f);

byte ] tom= new byte3];

int m = in.read(tom,0,3);

System.out.println(m);

String s=new String(tom,0,3);

System.out.println(s);

m = in.read(tom,0,3);

System.out.println(m);

s=new String(tom,0,3);

System.out.println(s);

}

catch(IOException e) {}

}

17.在try-catch-finally语句块中，以下可以单独与finally一起使用的是选项： A:

Catch

Try

Throws