Exception Handing Programs - Will not Compile, cannot determine what is wrong.

[woodmandan2]

Hi all. This is my task for the assignment:

1. Write a program where the user enters their name and age, and then is required to see if their age is between 0 and 125. If not, there is an error code.

2. Write a program to withdraw money from a 10,000 dollar checking account, if it is less than 0 or greater than 10000 there will be an error.

3. write a program to start three tasks at a given time, and make time between those tasks (pauses), utilizing the concept of multithreading.

Basically I am attempting to write three separate programs, with three separate tasks. Programs 1 + 3 will not compile. Program 2 will compile, but does not function correctly after compiled. I have literally spent hours attempting to figure out what I am doing wrong, to no avail. Here is the source code for my programs:

Program 1

import java.util.Scanner;
public class InvalidAgeException extends Exception
{
	public InvalidAgeException()
	{
		super("The age entered is Invalid"
	}
}
Class InputAge
{
	public static void main(String args[])
	{
		try
		{
			Scanner input data = new Scanner( System.in );
			System.out.print("Enter your name");
			String str1 = inputdata.nextLine();
			System.out.print("Enter your age");
			int age = inputdata.nextInt();
			if (age < 0 || age > 125)
			{
				throw InvalidAgeException(age);
			}

		}
		catch(InvalidAgeException age)
		{
			System.out.println("Age is Incorrect");
		}
		finally
		{
			System.out.println("Execution complete, program finished");
		}
	}
}

Program 2

import java.util.Scanner;
public class InvalidAgeException extends Exception
{
	public InvalidAgeException()
	{
		super("The age entered is Invalid"
	}
}
Class InputAge
{
	public static void main(String args[])
	{
		try
		{
			Scanner input data = new Scanner( System.in );
			System.out.print("Enter your name");
			String str1 = inputdata.nextLine();
			System.out.print("Enter your age");
			int age = inputdata.nextInt();
			if (age < 0 || age > 125)
			{
				throw InvalidAgeException(age);
			}

		}
		catch(InvalidAgeException age)
		{
			System.out.println("Age is Incorrect");
		}
		finally
		{
			System.out.println("Execution complete, program finished");
		}
	}
}

Program 3

class Thread1 extends Thread
{
	public void run()
	{
		for(int j = 0; j<100; j += 2)
			System.out.println("Thread 1:  " + j);
	}
}

class Thread 2 extends Thread
{
	public void run()
	}
		for(int k = 1; k<100; k += 4)
			System.out.println("Thread 2: " + k);
	}
}

class Thread3 extends Thread
{
	public void run()
	{
		for(int k = 1; k<100; k += 6)
			System.out.println("Thread 3: " + k);
	}
}
Class Program3
{
	public static void main(String arg[])
	{
		try{
		Thread1 objThread1 = new Thread1();
		Thread2 objThread2 = new Thread2();
		Thread3 objThread3 = new Thread3();
		objThread1.start();
		Thread.sleep(1000);
		objThread2.start();
		Thread.sleep(1000);
		objThread3.start();
		}catch(InterruptedException e){
			e.printStackTrace();
		}
	}
}

[Fubarable]

If you need help with compilation errors, it would be advisable to show us the error messages and indicate which lines are causing the errors. I really shouldn't have to request this information as it should be obvious that we'd need it.

[woodmandan2]

Sorry.... I will post the error messages, in code format, shortly.

[Fubarable]

Thanks, that will help quite a bit.

[Sierra]

I wonder why any of this compiles... "Class" is not a valid java declaration... and empty spaces in names are... um... uncommon, not to say forbidden. ^^