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class PeopleSystem {
private String name;
private String number;
private String type;
public PeopleSystem(String a,String b,String c) { //注册方法
this.name=a;
this.number=b;
this.type=c;
}
public String getname() {
return this.name;
}
}
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class BookSystem {
private String name;
private String number;
private String press;
private String author;
private String type; //类型
private String address; //存放地址
private String state; //状态信息，用于显示图书是否被借出 如果借出则为借书者的名字，无法再被借
public BookSystem() {
}
public BookSystem(String a,String b,String c,String d,String e,String f,String g) { //添加图书信息
this.name=a;
this.number=b;
this.press=c;
this.author=d;
this.type=e;
this.address=f;
this.state=g;
}
public void bookinformation(BookSystem a) { //输出图书信息
System.out.println(a.name+" "+a.number+" "+a.press+" "+a.author+
" "+a.type+" "+a.address+" "+a.state);
}
public void querybook(BookSystem a,String b) { //关键字查询图书信息，随意的一个属性名就可以查询
if(b.equals(a.name)||b.equals(a.press)||b.equals(a.author)||b.equals(a.type)
||b.equals(a.address)||b.equals(a.number))
{
System.out.println(a.name+" "+a.number+" "+a.press+" "+a.author+
" "+a.author+" "+a.type+" "+a.address+" "+a.state);
}
}
public void querystock(BookSystem a){ //输出可借图书
if(a.state.equals("true")) {
System.out.println(a.name+" "+a.number+" "+a.press+" "+a.author+
" "+a.author+" "+a.type+" "+a.address+" "+a.state);
}
}
public void change(BookSystem a,String b,String c,String d) { //图书对象名 参数：图书编号 要修改的属性 修改后的值
if(b.equals(a.number)&&c.equals("书名")) {
a.name=d;
System.out.println("修改书名成功！");
}else if(b.equals(a.number)&&c.equals("作者名")) {
a.author=d;
System.out.println("修改作者名成功！");
}else if(b.equals(a.number)&&c.equals("出版社")) {
