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4.3. Additional Information

4.3.1. Implementing Inheritance
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A subclass must also observe the first and second rules. It inherits its identifier property from the superclass, Cat. For example: 
package eg;

public class DomesticCat extends Cat {
        private String name;

        public String getName() {
                return name;
        }
        protected void setName(String name) {
                this.name=name;
        }
}
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