java题，急，大家快来看看吧

1）定义一个橘类(SouthOrange)，包含4个私有成员变量shape，size、color、membrane分别为字符串、单精度浮点型、字符串及整型，表示果实形状、直径大小、果皮颜色、囊瓣数。一个四参构造方法，一个无参构造方法，四个分别设置4个成员变量的方法，四个分别获取成员变量取值的方法，及一个输出方法显示四种属性。

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（2）编写测试类，测试SouthOrange。

class SouthOrange{
        private String shape;
        private float size;
        private String color;
        private Integer membrane;
        SouthOrange(String shape, float size, String color, Integer membrane){
            this.shape = shape;
            this.size = size;
            this.color = color;
            this.membrane = membrane;
        }
        SouthOrange(){}

        public String getShape() {
            return shape;
        }

        public void setShape(String shape) {
            this.shape = shape;
        }

        public float getSize() {
            return size;
        }

        public void setSize(float size) {
            this.size = size;
        }

        public String getColor() {
            return color;
        }

        public void setColor(String color) {
            this.color = color;
        }

        public Integer getMembrane() {
            return membrane;
        }

        public void setMembrane(Integer membrane) {
            this.membrane = membrane;
        }
        public void show(){
            System.out.println("shape = " + this.shape);
            System.out.println("size = " + this.size);
            System.out.println("color = " + this.color);
            System.out.println("membrane = " + this.membrane);
        }
    }

    @Test
    public void test001(){
        SouthOrange southOrange1 = new SouthOrange();
        SouthOrange southOrange2 = new SouthOrange("圆形", 1, "橙色", 1);
        southOrange1.setShape("正方形");
        southOrange1.setSize(2);
        southOrange1.setColor("黑色");
        southOrange1.setMembrane(2);

        southOrange1.show();
        southOrange2.show();
    }