主题：[推荐]Java授课视频第六课：面向对象——封装之一

//复数类

class ComplexNumber {
        private int real;
        private int image;

        public ComplexNumber() {
        }

        public ComplexNumber(int r, int i) {
                setComplexNumber(r, i);
        }

        public int getReal() {
                return real;
        }

        public void setReal(int real) {
                this.real = real;
        }

        public int getImage() {
                return image;
        }

        public void setImage(int image) {
                this.image = image;
        }

        public void setComplexNumber(int r, int i) {
                setReal(r);
                setImage(i);
        }

        public String toString() {
                return real + "+" + image + "i";
        }

}

public class Exec {
        public static void main(String[] args) {
                ComplexNumber cn1=new ComplexNumber(1,2);
                System.out.println(cn1);
        }
}