7th jobs - access to objects using

First, a title:

5 on the basis of the job, and then creating a column type, comprising a rectangle, and the high volume of the three member variables, a constructor method to initialize member variables, and calculating the volume change method bottom two functions, in the main category input length, width, height, calculated cylinder volume, enter a new length, width, height, creating a new rectangle, the method using soled soled, the cylinder volume is calculated again.

 

class the Rectangle {
     public  static  void main (String [] args) {             // main method 

        System.out.println ( "Please enter the length of the rectangle:" ); 
        Scanner in = new new Scanner (the System.in);
         Double num1 = in. nextDouble (); 
        System.out.println ( "Please enter the rectangular width:" ); 
        Scanner IN1 = new new Scanner (the System.in);
         Double num2 = in1.nextDouble (); 
        Rect a = new new Rect (num1, num2) ;             // create the object passed in the value of num1, num2
        System.out.println ( "rectangular area:" + a.area1 ()); 
        System.out.println ( "perimeter of a rectangle is:" + a.perimeter1 ()); 
        System.out.println ( " Please enter a rectangular prism height: " ); 
        Scanner IN2 = new new Scanner (System.in);
         Double num3 = in2.nextDouble (); 
        prism b = new new prism (a.area, num3);         // create the object and the rectangular area high incoming volume1 method 
        System.out.println ( "quadrangular prism volume:" + b.volume1 ());     // call the method volume1 volume output 
        System.out.println ( "Please enter the length of the rectangle width and replacement : " ); 
        Scanner IN3 = new newScanner (System.in);
         Double Num4 = in3.nextDouble (); 
        Scanner IN4 = new new Scanner (System.in);
         Double Num5 = in4.nextDouble (); 
        Rect c = new new Rect (Num4, Num5);                 // create incoming new value object class Rect 
        System.out.println ( "rectangular area is modified:" + c.area1 ());         // call to the new area is calculated area1 
        System.out.println ( "Please replace the four high input prism: " ); 
        Scanner IN5 = new new Scanner (the System.in);
         Double Num6 = in5.nextDouble (); 
        prism D =new new Prism (c.area, Num6);                         // Create a new object is passed value 
        System.out.println ( "modified square pillar volume:" + d.volume1 ());         // Volume is calculated call volume 
    } 
}

 

 

Problem 2: Design class called MyInteger, comprising: int type value a data field construction method, when the specified int value, object data created MyInteger field value and the access modifier isEven () and isOdd () method, 
if the current object is even or odd, class method returns true isPrime (MyInteger i), determines whether the specified value is a prime number, returns true MyInteger create objects in the main class, each class verification methods MyInteger

 

Package package4; 

Import Classes in java.util *. ; 

class MyInteger {
     int value;                       // int-type data 

    MyInteger ( int K) { 
        value = K;                    // Constructors assigned to Value 

    } 

    // value and the access modifier 
    public  int the getValue () {
         return value; 
    } 

    public  void the setValue ( int value) {
         the this .Value = value; 
    } 

    Boolean isEven () {           //Boolean isEven method of determining whether the number is even the 
        return value% 2 == 0 ; 
    } 

    Boolean isOdd () {
         return value. 1% 2 == ; 
    }                           // boolean isOdd method of determining the number is prime 

    static  Boolean the isPrime (MyInteger I) {         // Boolean class method isPrime determines the number is prime 
        Boolean Z = to true ;                         // define a Boolean variable assignment s to false 
        for ( int J = 2; J <i.value; J ++) {             // the cycle number is determined are prime 
            IF (% i.value J == 0 ) { 
                Z = to false; 
            } 
        } 
        Return Z; 
    } 
} 

class HomeWork { 

    public  static  void main (String [] args) { 

        System.out.println ( "Please enter the number of judgment:" ); 
        Scanner in = new new Scanner (the System.in);
         int n-= in.nextInt (); 
        MyInteger P1 = new new MyInteger (n-);         // Create a Myinteger variation p1, and the input n-; 
        System.out.println ( "whether the number is an even number" + p1.isEven ()) ; 
        System.out.println ( "whether the number is odd" + p1.isOdd ());
        System.out.println ("该数Zeinaze prime:" Tasu P1.IsPrime (P1)); 

    } 

}