java - Java程序对字母数字排序对象

Java程序对字母数字排序对象

请让我知道我怎么能得到预期的结果

预期产量:
B2
D1
D2
D14
E2

实际输出:
B2
D1
D14
D2
E2

===================================

List<Name> lst = new ArrayList<>();
lst.add(new Name("D",1));
lst.add(new Name("D",14));
lst.add(new Name("D",2));
lst.add(new Name("E",2));
lst.add(new Name("B",2));

Collections.sort(lst, new Comparator<Name>() {

    @Override
    public int compare(Name n1, Name n2) {
        // TODO Auto-generated method stub
        String o1=n1.getNm()+n1.getSeatnum();
        String o2=n2.getNm()+n2.getSeatnum();


         return o1.compareTo(o2);

    }
});

for (Name name : lst) {
    System.out.println(name.getNm()+name.getSeatnum());
}

================================

public class Name {

    private String nm;
    private int seatnum;

    public int getSeatnum() {
        return seatnum;
    }

    public void setSeatnum(int seatnum) {
        this.seatnum = seatnum;
    }

    public Name(String nm) {
        super();
        this.nm = nm;
    }

    public Name(String nm, int seatnum) {
        super();
        this.nm = nm;
        this.seatnum = seatnum;
    }

    public String getNm() {
        return nm;
    }

    public void setNm(String nm) {
        this.nm = nm;
    }

}

最佳答案

只需比较字母，然后比较您的整数:

public int compare(Name n1, Name n2) {
    // TODO Auto-generated method stub
    int compare = n1.getNm().compareTo(n2.getNm());
    if (compare == 0) {
        return Integer.compare(n1.getSeatnum(), n2.getSeatnum());
    } else {
        return compare;
    }
}