title: Eclipse Java Launch Error: Selection does not contain a main type
body: <p>This is my first java program and I have tried to launch it in Eclipse and Netbeans. I receive the launch error: "Selection does not contain a main type."  The code of my main function is below. The full code can be downloaded from <a href="http://www.fractalwebdesigns.com/classes.java" rel="nofollow">http://www.fractalwebdesigns.com/classes.java</a></p>
  
  <pre><code>    class test {
        public static void main(String[] args) {
  
      //Checking Account Test 
      CheckingAccount checking1 = new CheckingAccount(); 
          CheckingAccount checking2 = new CheckingAccount();
           CheckingAccount checking3 = new CheckingAccount();
          CheckingAccount checking4 = new CheckingAccount();
  
      checking1.open(1234);                   //Open a checking account with an account number 1234
      checking2.open(1235);                   //Open a checking account with an account number 1235
      checking3.open(1236);                   //Open a checking account with an account number 1236
      checking4.open(1237);                   //Open a checking account with an account number 1237
      checking1.credit(3000);                 //Credit 3000 to the account 1234
      checking2.credit(200);                  //Credit 200 to the account 1235
      checking3.credit(5000);                 //Credit 5000 to the account 1236
      checking4.credit(2000);                 //Credit 2000 to the account 1237
      checking1.debit(500);                   //Debit 500 from the account 1234
      checking3.debit(300);                   //Debit 300 from the account 1236
      checking4.debit(2500);                  //Debit 2500 from the account 1237
      checking1.readBalance();                //Read the balance of the account 1234
      checking2.readBalance();                //Read the balance of the account 1235
      checking1.readLastDepositAmount();      //Read last deposit amount of the account 1234
      checking4.readLastDepositAmount();      //Read last deposit amount of the account 1237
  
      //Saving Account Test
      SavingsAccount savings1= new SavingsAccount();
      SavingsAccount savings2= new SavingsAccount();
      SavingsAccount savings3= new SavingsAccount();
      SavingsAccount savings4= new SavingsAccount();
  
      savings1.open(5431);                    //Open a savings account with an account number 5431
      savings2.open(5432);                    //Open a savings account with an account number 5432
      savings3.open(5433);                    //Open a savings account with an account number 5433
      savings4.open(5434);                    //Open a savings account with an account number 5434
      savings1.credit(2000);                  //Credit 2000 to the account 5431
      savings2.credit(4000);                  //Credit 4000 to the account 5432
      savings3.credit(1000);                  //Credit 1000 to the account 5433 
      savings4.credit(5000);                  //Credit 5000 to the account 5434
      savings3.debit(2000);                   //Debit 2000 from the account 5433
      savings2.credit(1000);                  //Credit 1000 to the account 5432
      savings2.debit(2000);                   //Debit 2000 from the account 5432
      savings2.debit(500);                    //Debit 500 from the account 5432
      savings2.debit(300);                    //Debit 300 from the account 5432
      savings2.debit(600);                    //Debit 600 from the account 5432
      savings2.debit(100);                    //Debit 100 from the account 5432
      savings2.readBalance();                 //Read the balance of account 5432
      savings1.addInterest(.1);               //Add interest to the account 5431 with the interest rate 10%
      savings2.addInterest(.1);               //Add interest to the account 5432 with the interest rate 10%
      savings3.addInterest(.1);               //Add interest to the account 5433 with the interest rate 10%
      savings2.readCumulativeInterest();      //Read the cumulative interest of the account 5432
      savings2.readBalance();                 //Read the balance of account 5432. 
      }
  }
  </code></pre>