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标题: 【求助】Java排序问题 [打印本页]

作者: kyang 时间: 2004-04-30 11:48
标题: 【求助】Java排序问题
例如：
class A {
public String s1 = "";
public String s2 = "";
public String s3 = "";
}

List l = new ArrayList();

for ( int i = 0; i< 10; i ++ ) {
A a = new A();
a.s1 = "test" + i ;
a.s2 = "sub" + i;
a.s3 = "desc" + i;
l.add(a);
}

Class MyComp implements Comparator{
public int compare(Object element1, Object element2) {
???????
}
}

MyComp cc = new MyComp();

Collection.sort(l, cc);

如何实现MyComp，使之可以先按s1排序再按s2排序？相当于order by s1, s2的效果

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