Mega Code Archive
Putting your own type in a LinkedHashSet
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import java.util.LinkedHashSet;
import java.util.Set;
public class MainClass {
public static Set fill(Set a, int size) {
for (int i = 0; i < size; i++)
a.add(new MyType(i));
return a;
}
public static void test(Set a) {
fill(a, 10);
fill(a, 10); // Try to add duplicates
fill(a, 10);
System.out.println(a);
}
public static void main(String[] args) {
test(new LinkedHashSet());
}
}
class MyType implements Comparable {
private int i;
public MyType(int n) {
i = n;
}
public boolean equals(Object o) {
return (o instanceof MyType) && (i == ((MyType) o).i);
}
public int hashCode() {
return i;
}
public String toString() {
return i + " ";
}
public int compareTo(Object o) {
int i2 = ((MyType) o).i;
return (i2 < i ? -1 : (i2 == i ? 0 : 1));
}
}
//
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