keywords used
1. try
2. catch
3. finally
4. throw
5. throws
1. try-catch-finally
package org.vit.java.exception;
import java.util.Scanner;
public class Divison
{
public static void main(String[] args) throws OwnException
{
Scanner in = new Scanner(System.in);
System.out.println(“Enter the First Number:”);
int x =in.nextInt();
System.out.println(“Enter the First Number:”);
int y = in.nextInt();
float z = 0;
try
{
z = x / y;
System.out.print(“The Divison value is” +z);
}
catch(ArithmeticException a)
{
System.out.println(a.toString());
}
finally
{
System.out.print(“I am always here”);
}
}
}
package org.vit.java.exception;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
public class Sample {
public void getFile(String name)
{
try
{
FileInputStream f = new FileInputStream(new File(name));
}
catch (FileNotFoundException e)
{
System.out.print(e.toString());
}
}
public static void main(String[] args)
{
Sample s = new Sample();
s.getFile(“ss.txt”);
}
}
2. Creating User Defined Exception
package org.vit.java.exception;
import java.util.Scanner;
class MyException extends Exception
{
public String toString()
{
return “Number is less than 10″;
}
}
public class MyExceptionTest
{
public static void main(String[] args)
{
Scanner in = new Scanner(System.in);
System.out.println(“Enter the First Number:”);
int x =in.nextInt();
System.out.println(“Enter the First Number:”);
int y = in.nextInt();
float z = 0;
try
{
z = x / y;
if(z < 10.0)
{
throw new MyException();
}
}
catch (MyException e)
{
System.out.println(e.toString());
}
catch(ArithmeticException a)
{
System.out.println(a.toString());
}
finally
{
System.out.print(“The Divison value is” +z);
}
}
}
3. Throws Example
package org.vit.java.exception;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
public class Sample {
public void getFile(String name) throws FileNotFoundException
{
FileInputStream f = new FileInputStream(new File(name));
}
public static void main(String[] args) throws FileNotFoundException
{
Sample s = new Sample();
s.getFile(“ss.txt”);
}
}
