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import java.util.* ;
public class Crash{
public String toString(){
return "Crash java" + this ;//´Ë´¦this»áµ÷ÓÃtoString()·½·¨£¬ÒýÆðµÝ¹é
}
public static void main(String [] args){
Vector v = new Vector();
for(int i = 0 ; i < 10 ; i++)
v.addElement(new Crash());
System.out.println(v);
}
}
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import java.util.*;
class Prediction{
boolean shadow = Math.random() > 0.5 ;
public String toString(){
if(shadow)
return "Six more weeks of Winter" ;
else
return "Early Spring";
}
}
class Groundhog2{
int ghNumber ;
Groundhog2(int n){
ghNumber = n;
}
public int hashCode(){
return ghNumber ;
}
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