in Java/GetAccountBalanceSample.java [35:50]
public static void main(final String[] argv) throws IOException {
/*
Use the Amazon Mechanical Turk Sandbox to publish test Human Intelligence Tasks (HITs) without paying any money.
Sign up for a Sandbox account at https://requestersandbox.mturk.com/ with the same credentials as your main MTurk account.
*/
final GetAccountBalanceSample sandboxApp = new GetAccountBalanceSample(getSandboxClient());
final String sandboxBalance = sandboxApp.getAccountBalance();
// In Sandbox this will always return $10,000
System.out.println("SANDBOX - Your account balance is " + sandboxBalance);
// Connect to the live marketplace and get your real account balance
final GetAccountBalanceSample productionApp = new GetAccountBalanceSample(getProductionClient());
final String productionBalance = productionApp.getAccountBalance();
System.out.println("PRODUCTION - Your account balance is " + productionBalance);
}