java - 如何在 java 中编写带组的数组？

Question

新人在这里，

如何在数组中创建组？

receipt[] re11 = {["Book", 12.49, 1, false, true],["Music CD", 14.99, 1, false, false]};

我知道在 javascript 中你可以像那样使用方括号，但我就是不记得在 java 中该怎么做。

编辑:这是我剩下的类(class)。抱歉，这可能会有更多帮助:

public class receipt {

private double price;
private Integer quantity;
private String itemName;
private boolean imported;
private boolean taxExemption;

private double basicTaxRate = .10;
private double importDuty = .05; 
private double grandTotal;

public receipt(){

}

public receipt(String newItemName, double newPrice, Integer newQuantity, boolean newImported, boolean newTaxExemption){
    itemName = newItemName;
    price = newPrice;
    quantity = newQuantity;
    imported = newImported;
    taxExemption = newTaxExemption;
}

//Accessors
public double getPrice(){
    return price;
}

public Integer getQuantity(){
    return quantity;
}

public String getItemName(){
    return itemName;
}

public boolean getImported(){
    return imported;
}

public boolean getTaxExemption(){
    return taxExemption;
}


//mutators
public void setPrice(double newPrice){
    //JOptionPane.showInputDialog("What is the price of the item?");
    this.price = newPrice;
}

public void setQuantity(Integer newQuantity){
    this.quantity = newQuantity;
}

public void setItemName(String newItemName){
    this.itemName = newItemName;
}

public void setImported(boolean newImported){
    this.imported = newImported;
}

public void setTaxExemption(boolean newTaxExemption){
    this.taxExemption = newTaxExemption;
}

public double computeTax(){
    if(imported == true){
        return price*(1+(basicTaxRate+importDuty));
    }
    else{
        return price*(1+basicTaxRate);
    }
}

public double computeTotal(){
    if (taxExemption = false){
        return computeTax()*quantity;
    }
    else
        return price*quantity;

}

public void computeGrandTotal(){
    grandTotal =+ computeTotal();
    //return grandTotal;        
}

Answer 1

你是这个意思吗？

Receipt[] re11 = {new Receipt("Book", 12.49, 1, false, true),new Receipt("Music CD", 14.99, 1, false, false)};