示例#1
0
 public static InvoicePrinter getInstance()
 {
     if (INSTANCE == null)
     {
         INSTANCE = new InvoicePrinter();
     }
     return(INSTANCE);
 }
示例#2
0
 public static InvoicePrinter getInstance()
 {
     if (INSTANCE == null)
     {
         INSTANCE = new InvoicePrinter();
     }
     return INSTANCE;
 }