用java1. 编程序，创建一个描述三角形的类Triangle，类中有三边长、面积、周长等成员变量，有带参数的构造方法，以及计算面积、计算周长和输出信息等成员方法，再创建描述圆形的类Circle，其中有半径、面积、周长等属性，有带参数的构造方法，以及计算面积、计算周长和输出信息等成员方法，在主类中测试三角形类和圆形类的使用（创建对象，计算面积、周长，输出信息）。

下面是Java代码实现：

// Triangle类
public class Triangle {
    private double side1;
    private double side2;
    private double side3;
    private double area;
    private double perimeter;
    
    public Triangle(double side1, double side2, double side3) {
        this.side1 = side1;
        this.side2 = side2;
        this.side3 = side3;
        calculateArea();
        calculatePerimeter();
    }
    
    private void calculateArea() {
        double s = (side1 + side2 + side3) / 2;
        area = Math.sqrt(s * (s - side1) * (s - side2) * (s - side3));
    }
    
    private void calculatePerimeter() {
        perimeter = side1 + side2 + side3;
    }
    
    public void displayInfo() {
        System.out.println("Triangle:\nSide1: " + side1 + "\nSide2: " + side2 + "\nSide3: " + side3 + "\nArea: " + area + "\nPerimeter: " + perimeter);
    }
}

// Circle类
public class Circle {
    private double radius;
    private double area;
    private double perimeter;
    
    public Circle(double radius) {
        this.radius = radius;
        calculateArea();
        calculatePerimeter();
    }
    
    private void calculateArea() {
        area = Math.PI * radius * radius;
    }
    
    private void calculatePerimeter() {
        perimeter = 2 * Math.PI * radius;
    }
    
    public void displayInfo() {
        System.out.println("Circle:\nRadius: " + radius + "\nArea: " + area + "\nPerimeter: " + perimeter);
    }
}

// 主类
public class Main {
    public static void main(String[] args) {
        Triangle triangle = new Triangle(3, 4, 5);
        triangle.displayInfo();
        
        Circle circle = new Circle(5);
        circle.displayInfo();
    }
}

输出结果为：

Triangle:
Side1: 3.0
Side2: 4.0
Side3: 5.0
Area: 6.0
Perimeter: 12.0
Circle:
Radius: 5.0
Area: 78.53981633974483
Perimeter: 31.41592653589793