loancreditaccount.java

银行的一个管理系统

package com.shunshi.bam.entity.model;
import com.shunshi.bam.exception.*;
public class LoanCreditAccount extends CreditAccount implements Loanable{
	private double loan;
	public double getLoan() {
		return loan;
	}
	public void setLoan(double loan) {
		this.loan = loan;
	}
	public LoanCreditAccount(){
		super();
	}
	public LoanCreditAccount(String password,String name,String personId,String email){
		super(password,name,personId,email);
	}
	public void payLoan(double loan) throws LoanException,BalanceSmalerZeroException,BalanceNotEnoughException{
		if(loan<0){
			throw new LoanException("还贷款额不能是负数");
			//System.out.println("loan is smaler zero");
			//return;
		}
		if(this.loan<loan){
			throw new LoanException("不需要还这么多钱");
			//System.out.println("bu xuyao huan zhemeduo money");
			//return;
		}
		this.withdraw(loan);
		this.loan-=loan;
		
	}
	public void requestLoan(double loan)throws LoanException{
		if(loan<0){
			throw new LoanException("贷款额不能是负数");
			//System.out.println("loan is smaler zero");
			//return;
		}
		this.loan+=loan;
	}
	public String toString(){
		return super.toString()+",loan="+loan;
	}
	public boolean equals(Object o){
		if(o==this) return true;
		boolean flag=super.equals(o);
		if(!flag){
			return false;
		}else{
			LoanCreditAccount lsa=(LoanCreditAccount)o;
			if(lsa.getLoan()==this.getLoan()){
				return true;
			}else{
				return false;
			}
		}
	}
}