ZCW-MacroLabs-OOP-ScientificCalculator/MemoryFunc.java

/**

 */
public class MemoryFunc {
    private Double memory;
    public static final Double DEFAULT_MEMORY_VALUE = new Double(0);

    public MemoryFunc() {
        this.memory = DEFAULT_MEMORY_VALUE;
    }
    /**
     * Menu
     * Clear
     * Print
     * Update
     */
    
    public void memoryMenu() {
        
        Console.println("Memory Menu"
                         + "\nM+: Update stored memory value"
                         + "\nMC: Clear to default memory value"
                         + "\nMCR: Display stored memory value"
                         + "\nCancel: Returns to Main Menu");
                         
        String memoryOpt = "";
        
        while (!memoryOpt.equals("cancel")) {
            
            memoryOpt = Console.getStringInput("Select option by typing the key").toLowerCase();
            
            if (memoryOpt.equals("m+")) {
                
                Double newMemory = Console.getDoubleInput("Enter the value to store");
                updateMemory(newMemory);
                break;
                
            } else if (memoryOpt.equals("mc")) {
                
                clearMemory();
                break;
                
            } else if (memoryOpt.equals("mcr")) {
                
                displayMemory();
                break;
                
            } else {
                
                Console.println("Invalid Option");
                
            }
        }
    }
    
    public void updateMemory(Double memoryInput) {
        this.memory = memoryInput;
    }
    
    public void clearMemory() {
        this.memory = DEFAULT_MEMORY_VALUE;
    }
    
    public void displayMemory() {
        Console.println(memory.toString());
    }
    
}