It is advisable to open a bank account while in Singapore. Your parents may also arrange to transfer money into your account in Singapore by interbank telegraphic transfer. This is a cheaper option as compared to using your credit card to withdraw money and a safer option than to carry around large amounts of cash.
Visa / Mastercard / American Express / Diners Club / Maestro / Plus are widely recognised in Singapore. You may withdraw money from most bank machines. There are also ATM machines located around campus.
For full banking facilities, there is an Overseas Chinese Bank Corporation (OCBC) located on campus. You may also visit Jurong Point Shopping Centre, which is located near campus for your banking needs.