Need help with this Strings/Methods question!

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class Dinosaur( private int height; // The height of a dinosaur in feet private int weight; // The weight of a dinosaur in pounds private String color; //The color of the dinosaur public Dinosaur (int height, int weight, String color)( this.height - height; this.weight - weight; this.color - color; public Dinosaur (String color)( this. color = color; this.height - 0; this.weight - 0; public void eat(int mass) if(isNegative(mass)) return; this.weight +- mass; public void grow(int amount)H if (isNegative(amount)) return; this.height +- amount; private boolean isNegative(int value)I if (value