我在Vector中有三个值(5 3.14 abcd),为什么我用indexOf找3.14时,总返回-1啊public void find(Object o){
System.out.println(o.toString()); //输出为3.14
int rc = indexOf(o);
System.out.println(rc); //输出为-1
}
System.out.println(o.toString()); //输出为3.14
int rc = indexOf(o);
System.out.println(rc); //输出为-1
}
看看吧! 没时间写,写得不是很完善import java.util.Vector;
public class TestVector {
public TestVector() { }
private Vector initVector(Vector vec)
{
vec.add(0,"5");
vec.add(1,"3.14");
vec.add(2,"abcd");
return vec;
}
private void find(Vector vec,Object o)
{
System.out.println(o.toString());
String str ;
int rc = vec.indexOf(o);
System.out.println(rc);
}
public static void main(String[] args) {
TestVector test = new TestVector();
Vector tempVer = new Vector();
tempVer = (Vector) test.initVector(tempVer);
Object o = tempVer.get(1);
test.find(tempVer,o);
}
}