purchaserequest.java

设计模式代码

//
class PurchaseRequest{
	private int number;  //
	public double amount;  //
	private String purpose; //
	
	//Constructors
	public PurchaseRequest(int number,double amount,String purpose){
		this.number=number;
		this.amount=amount;
		this.purpose=purpose;
	}
}