try

{

   // 程序代码

}catch(ExceptionName e1)

{

   //Catch 块

}

import java.io.*;

public class ExcepTest{

   public static void main(String args[]){

      try{

         int a[] = new int[2];

         System.out.println("Access element three :" + a[3]);

      }catch(ArrayIndexOutOfBoundsException e){

         System.out.println("Exception thrown  :" + e);

      }

      System.out.println("Out of the block");

   }

}

try{

   // 程序代码

}catch(异常类型1 异常的变量名1){

  // 程序代码

}catch(异常类型2 异常的变量名2){

  // 程序代码

}catch(异常类型2 异常的变量名2){

  // 程序代码

}

try {

    file = new FileInputStream(fileName);

    x = (byte) file.read();

} catch(FileNotFoundException f) { // Not valid!

    f.printStackTrace();

    return -1;

} catch(IOException i) {

    i.printStackTrace();

    return -1;

}

import java.io.*;

public class className

{

  public void deposit(double amount) throws RemoteException

  {

    // Method implementation

    throw new RemoteException();

  }

  //Remainder of class definition

}

import java.io.*;

public class className

{

   public void withdraw(double amount) throws RemoteException,

                              InsufficientFundsException

   {

       // Method implementation

   }

   //Remainder of class definition

}

try{

  // 程序代码

}catch(异常类型1 异常的变量名1){

  // 程序代码

}catch(异常类型2 异常的变量名2){

  // 程序代码

}finally{

  // 程序代码

}

public class ExcepTest{

  public static void main(String args[]){

    int a[] = new int[2];

    try{

       System.out.println("Access element three :" + a[3]);

    }catch(ArrayIndexOutOfBoundsException e){

       System.out.println("Exception thrown  :" + e);

    }

    finally{

       a[0] = 6;

       System.out.println("First element value: " +a[0]);

       System.out.println("The finally statement is executed");

    }

  }

}

class MyException extends Exception{

}

import java.io.*;

//自定义异常类，继承Exception类

public class InsufficientFundsException extends Exception

{

  //此处的amount用来储存当出现异常（取出钱多于余额时）所缺乏的钱

  private double amount;

  public InsufficientFundsException(double amount)

  {

    this.amount = amount;

  }

  public double getAmount()

  {

    return amount;

  }

}

import java.io.*;

//此类模拟银行账户

public class CheckingAccount

{

  //balance为余额，number为卡号

   private double balance;

   private int number;

   public CheckingAccount(int number)

   {

      this.number = number;

   }

  //方法：存钱

   public void deposit(double amount)

   {

      balance += amount;

   }

  //方法：取钱

   public void withdraw(double amount) throws

                              InsufficientFundsException

   {

      if(amount <= balance)

      {

         balance -= amount;

      }

      else

      {

         double needs = amount - balance;

         throw new InsufficientFundsException(needs);

      }

   }

  //方法：返回余额

   public double getBalance()

   {

      return balance;

   }

  //方法：返回卡号

   public int getNumber()

   {

      return number;

   }

}

public class BankDemo

{

   public static void main(String [] args)

   {

      CheckingAccount c = new CheckingAccount(101);

      System.out.println("Depositing $500...");

      c.deposit(500.00);

      try

      {

         System.out.println("\nWithdrawing $100...");

         c.withdraw(100.00);

         System.out.println("\nWithdrawing $600...");

         c.withdraw(600.00);

      }catch(InsufficientFundsException e)

      {

         System.out.println("Sorry, but you are short $"

                                  + e.getAmount());

         e.printStackTrace();

      }

    }

}