Hi all, in reference data type i have two person with two age and i want to compare their ages with return how can i do that?

Question

class Person {
private string name;
private int age;
person (string n) {
this.name = n;
}
public int getAge(){
return Age ;
.
.
.
i want use
static int max ( int a, int b) {

// i don't know is it true or not

if ( a>b) {
return a }
else { return b}

how can i do that?

Answer 1

Here you go

Arsal:
public class Main
{
public static void main(String[] args) {
Person j;
Person o;
o = new Person("john", 18);
j = new Person ("bob", 24);
// birthday(j);
//good(o);
System.out.println("name of two persons :");
System.out.println("bob" + " " + j.getAge());
System.out.println("john" + " " + o.getAge());
System.out.println ("The older person is: " + j.getOlderPerson(o).getName());
System.out.println("His age is: " + j.getOlderAge(o));
}

}

class Person {
private String name;
private int age;
Person (String nm, int age) {
this.name = nm;
this.age = age;
}

public String getName(){
return this.name;
}

public int getAge(){
return age;
}

public void setAge(int age){
this.age = age;
}

public void setName(String name){
this.name = name;
}

Person getOlderPerson(Person p){
if(this.age > p.age)
return this;
return p;
}

int getOlderAge(Person p){
if(this.age > p.age)
return this.age;
return p.age;
}
}

Answer 2

hi,
please help me,
what is the problem?

public class Vehicle {
private String color;
private String module;
private int speed;
private double fuel;
Vehicle() {
this.setColor("red");
}
Vehicle(String c) {
this.setColor(c);
}
Vehicle(String m, int s){
this.speed = s;
this.module = m;
}
public String getColor() {
return color;
}
public void setColor(String c) {
this.color= c;
}
public String getModul() {
return module;
}
public void setModul(String m) {
this.module = m;
}
public int getSpeed() {
return speed;
}
public void setSpeed(int s) {
this.speed = s;
}
public double getFuel() {
return fuel;
}
public void setFuel(double f) {
this.fuel = f;
}
public void bogh() {
System.out.println("beep");
}
Vehicle getfastercarmodule(Vehicle x){
if(this.speed > x.speed)
return this;
return x;
}
int getfastercar(Vehicle x){
if(this.speed > x.speed)
return this.speed;
return x.speed;
}
}
class Program {
public static void main(String [] args) {
Vehicle j;
Vehicle o;
j = new Vehicle("benz", 300);
o = new Vehicle("bmw", 250);
System.out.println("the faster car is"+" "+ j.getfastercarmodule (o).getModule());
System.out.println("the speed of car is"+ " "+j.getfastercar(o));
Vehicle car1 = new Vehicle();
Vehicle car2 = new Vehicle("green");
Vehicle car3 = new Vehicle();
System.out.println("the color for car1 and car3 is" + " " + car1.getColor()+ " " + "and the color for car2 is " + car2.getColor());
}
}

Answer 3

Why would you make this method static?
You are using instance variables (variables that are actively used in this object). So here my suggestion:

public int getOlderPerson(Person p) {
if(this.getAge()>p.getAge)
return this.getAge();
return p.getAge();
}

By making in It an instance method, you can call this function like this.

Person per, pers;
//initialize them

int maxAge = per.getOlderPerson();
The This calls the The object on which you call your method.

Answer 4

it wasn't work, i wrote my code can you help me again ty
public class Program
{
public static void main(String[] args) {
Person j;
Person o;
o = new Person ("john");
j = new Person ("bob");
j.setAge(24);
o.setAge(18);
birthday(j);
good(o);
System.out.println("name of two persons :");
System.out.println("bob" + " " + j.getAge());
System.out.println("john" + " " + o.getAge());
}
static void birthday (Person p) {
p.setAge(p.getAge() + 2);
}
static void good (Person d) {
d.setAge(d.getAge() + 6);
}
}
class Person {
private String name;
private int age;
Person (String n) {
this.name = n;
}
public int getAge() {
return age;
}
public void setAge(int a) {
this.age = a;
}
}

Answer 5

thank you it was very good