Collections and Generics

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A programmer must create a generic class MinMax and the type parameter of MinMax must implement Comparable. Which implementation of MinMax will compile?

class MinMax < E extends Comparable < E > > { E min = null; E max = null; public MinMax() {} public void put(E value) { /* store min or max */ }
class MinMax < E implements Comparable < E > > { E min = null; E max = null; public MinMax() {} public void put(E value) { /* store min or max */ }
class MinMax < E extends Comparable < E > > { < E > E min = null; < E > E max = null; public MinMax() {} public < E > void put(E value) { /* store min or max */ }
class MinMax < E implements Comparable < E > > { < E > E min = null; < E > E max = null; public MinMax() {} public < E > void put(E value) { /* store min or max */ }

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