一个小问题，这个warning的怎么解决？

[alcla]

javac -Xlint *.java
waring:[unchecked] unchecked conversion
found PQcomparator
require:java.utill.Comparator<? super node>
bestSucc = new PriorityQueue<node>(1,new PQComparator());
1 warning

my PQComparator class is:
import java.util.Comparator;
class PQComparator implements Comparator{
node t1;
node t2;
public int compare(Object a,Object b){
t1= (node)a;
t2= (node)b;
return t1.getNum()-t2.getNum();
}
}

[alcla]

up

[believefym]

我也一直在考虑这个问题，gg也搜不到，这个是个泛型的警告

[alcla]

another simple question is:
int[] caluse = new int[3];
ArrayList<int[]> formula = new ArrayList<int[]>();
formula.add(caluse);
but the formula ArrayList only check the item add into it is a int[] while i want to give a restrict add with every item must be int[3];
like ArrayList<int[3]> formula = new ArrayList<int[]>();
but it does not work;
instead create a class like caluseNode{
int a = new int[3];
}
and do the following declare:
ArrayList<caluseNode> formula = new ArrayList<int[]>();
is there any other solutions?

[trumplet]

我用netBeans 5.0 beta，单独编译PQComparator没有出现警告。

不知道bestSucc = new PriorityQueue<node>(1,new PQComparator());是哪个类的，是否与调用有关呢。

[alcla]

up

[alcla]

just in my code like following:
public class test{
Random rand;
int nVars; //the number of propositional variables
int nCals; //the number of clauses
int[] symbolPool; //all the variables strore in this array
int[] caluse = new int[3];
ArrayList<int[]> formula;
ArrayList<node> nodeList;
int max_restarts;
int max_climbs;
private PriorityQueue<node> bestSucc;
private PriorityQueue<node> bestSuccTemp;

test(){
bestSucc = new PriorityQueue<node>(1,new PQComparator());
formula = new ArrayList<int[]>();
nodeList = new ArrayList<node>();
rand = new Random();
nVars = 100;
nCals = 100;
max_restarts = 100;
max_climbs = 500;
}
....................
with the line new PriorityQueue<node>(1,new PQComparator());

[believefym]

跟楼主共同关注

[Mark_Chen]

up!!

[lyj830223]

学习中……

[紫炎圣骑]

up

[zhouyong80]

这是个泛型的问题.泛型是J2SE 5.0最重要的特性。关于这个在我的Blog里有详细的介绍,建议你去看一下就全明白了.地址是:http://blog.csdn.net/zhouyong80/archive/2005/10/26/517076.aspx

[believefym]

Comparator的泛型警告还是不解

[yy80680169]

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