On April 1 of the current year, a company paid $150,000 cash to purchase 7%, 10-year bonds with a par value of $150,000; interest is paid semiannually each April 1 and October 1. The company intends to hold these bonds until they mature. Prepare the journal entries to record the bond purchase, the receipt of the first semiannual interest payment on October 1 of the current year, and the accrual of interest for the year-end December 31.