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Thread: interface Comparable<T> problem
 03042008, 08:22 PM #1Member
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interface Comparable<T> problem
Hello,
I have an Java library interface, and I have to implement the MyInt class, it gives me the error int cannot be dereferenced:confused: I can't seem to understand why it's not compiling, can anyone help me please?
Thank You
Here's the code so far
Java Code:import java.util.*; public class MyInt { private int value; public MyInt(int value) { this.value = value; } public String toString() { return ("My integer " + value); } public int getInteger() { return value; } public int compareTo(MyInt rhs) { if (value < rhs.value) return 1; if (value > rhs.value) return 1; return 0; } // public int intValue() // { // return intValue; // // } public boolean equals(Object rhs) { if (!(rhs instanceof MyInt)) return false; MyInt m = (MyInt)rhs; return m.value.equals(value); } }
public interface Comparable<T>
{
int compareTo(T rhs);
}
Java Code:
 03042008, 08:24 PM #2
Why are you using Comparable generically. If something implements Comparable, you don't really need to use generics. But idk, maybe I'm not understanding something.
 03042008, 08:34 PM #3Member
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Hello, gibsonrocker800
It's coursework from Uni, and that's the spec I was given.
Here it it is
5. Consider the following Java Library interface
public interface Comparable<T>
{
int compareTo(T rhs);
}
Complete the implementation of the class below that implements the above interface. The compareTo method should return 1 if value is less than rhs.value, 0 if both sides are equal and +1 if value is greater than rhs.value.
public class MyInt implements Comparable<MyInt>
{
private int value;
MyInt(int x) {...}
public String toString() {...}
public int intValue() {...}
public int compareTo(MyInt rhs){...}
public boolean equals(Object rhs) {...}
}
Thanks
 03052008, 12:17 AM #4
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