A job
A topic
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.
Topic two
MyInteger design class name, which includes: 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 MyInteger verification method.
Second, the program code:
A topic
Block (a):
package HomeWork;
import HomeWork2.CylinderBody;
public class CylinderBodyMain {
public static void main(String[] args) {
P = CylinderBody new new CylinderBody (); // create a cylindrical object is named p
The System . OUT .println (p.InitialVolume (4,5,6)); // initialization value transducer (soled) Volume seeking p
P2 = CylinderBody new new CylinderBody (); // create a cylindrical object called p2,
. The System OUT .println (p2.InitialVolume (5,6,7)); // initialization value transducer (soled) Volume seeking p2
}
}
Block (b):
package HomeWork2;
public class CylinderBody {
int rectLong, rectWeight, rectArea, height, Volume; // defined length, width, height, volume four members variables
public int the Rectangle ( int L, int W, int H) {// definition of a rectangle class
rectLong = l; // initialize length
rectWeight = w; // initialize width
height=h;
rectArea = rectLong * rectWeight; // initialization area
return rectArea;
}
public int Area ( int X, int Y) {// constructor creates a demand area
rectArea = x * y;
return rectArea;
}
public int InitialVolume ( int L, int W, int H) {// create a bottom and a transducer configured to calculate the volume method
volume=area(l,w)*h;
return volume;
}
}
Topic two
Block (a):
package HomeWork;
import HomeWork2.Mylnteger;
public class MylntegerMain {
public static void main(String[] args) {
Integer value= 5;
if(value instanceof Integer){
HomeWork2.Mylnteger p=new Mylnteger();
p.setValue(value);
System.out.println(p.getValue());
System.out.println(p.isEven(value));
System.out.println(p.isOdd(value));
System.out.println(p.isPrime(p));
}else{
. System OUT .println ( "you are wrong");
}
}
}
Block (b):
package HomeWork2;
public class Mylnteger {
int value2=5;
public int getValue(){
return value2;
}
public void setValue(int x){
this.value2=x;
}
public boolean isEven(int x){
x=this.value2;
if(x%2==0){
return true;
}else{
return false;
}
}
public boolean isOdd(int x){
x=this.value2;
if(x%2==0){
return false;
}else{
} return true;
}
public static boolean isPrime(Mylnteger i){
int z=i.getValue();
boolean flag =false;
for(int s=2;s<z;s++){
if(z%s==0){
flag = true;
}
}
return flag;
}
}
三、运行结果：
题目一
题目二
