I write a java program but there is an error in one line I want you sir to help me find the correction of this error

Question

1.00/5 (1 vote)

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Write a class person each person has a name age address and job.

The class also has a constructor as well as the following methods:
Display() to display the person data
set Address() and getAddress() to set and get the persons address

write java program to create a person his data was entered by the user then display his data

The code:

Java

import java.util.Scanner;
public class person
{
    String name,address,job;
    byte age;
    person(String name,byte age,String address,String job)
    {
        this.name=name;
        this.age=age;
        this.address=address;
        this.job=job;
    }
    void Display()
    {
        System.out.println("name="+name);
        System.out.println("age="+age);
        System.out.println("address="+address);
        System.out.println("job="+job);
    }
    void setAddress()
    {
        String add=address;
    }
    String getAddress()
    {
        return address;
    }

    public static void main(String[] args)
    {
        Scanner input=new Scanner (System.in);
        person p = new person();
        System.out.print("name is");
        String s=input.next();
        System.out.print("age is");
        byte x=input.nextByte();
        System.out.print("address is");
        String y=input.next();
        System.out.print("job is");
        String z=input.next();
        p.Display();
    }
}

Posted 23-Jul-12 22:13pm

Member 8697827

Updated 23-Jul-12 22:35pm

enhzflep

v2

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Comments

Richard MacCutchan 24-Jul-12 4:24am

First thing you need to do is add proper indentation to your code so it is readable. The second thing you need to do is tell us the exact text of the error, and where it occurs.

OriginalGriff 24-Jul-12 4:25am

And the error is?

Member 8697827 24-Jul-12 5:24am

The error occurs at this line
person p = new person();

Richard MacCutchan 24-Jul-12 7:43am

You really need to take OriginalGriff's advice here.

Sandeep Mewara 24-Jul-12 7:57am

What error?

3 solutions

Solution 1

There are a number of problems here, most of which are related to the java compiler not being psychic! :laugh:

You need to go back to your lecture notes, and read them again, because this shows that you really haven't understood anything except teh basic syntax of java.

For example, look at your setAddress and getAddress routines: the latter returns a value, but the former does not accept a value to set at all. So you have created a temporary value into which you load the current address instead, presumably because you know you have to do something there, but don't know what.

I'm sorry, but I am not going to fix "the problem" because it would entail writing the whole of your homework, and giving you the code here will teach you nothing! There are too many fundamental concepts that you appear to have completely not grasped yet.
Go back to you notes, read them again, and see what you can work out - if you get a specific problem we will be happy to help.

Posted 23-Jul-12 23:00pm

OriginalGriff

Comments

OriginalGriff 24-Jul-12 5:42am

You haven't fixed the error - you haven't started to fix the error!
All you have done is throw some code together without thinking about what it is supposed to do, or how it is supposed to do it. Sorry to be blunt, but there is no nice way to say this! :)
For example: What exactly is the "error" you have? Because I can see maybe a dozen...:laugh:

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bbirajdar · Accepted Answer · 2012-07-24T01:41:00

Solution 3

You have created a parameterized constructor. You need to pass the parameters to it while creating the object

This line of code in the main()

C#

person(String name,byte age,String address,String job)

will change to

C#

person p =new person("aspnet_regiis",21,"Pune India","Software Developer")

Posted 24-Jul-12 1:41am

bbirajdar

Comments

Member 8697827 24-Jul-12 8:40am

thanks alot

kushal.choudhary · Accepted Answer · 2012-07-24T01:23:00

Java

import java.util.Scanner;
public class Person
{
    String name,address,job;
    byte age;
    Person(){}
    Person(String name,byte age,String address,String job)
    {
        this.name=name;
        this.age=age;
        this.address=address;
        this.job=job;
    }
    void Display()
    {
        System.out.println("name   = "+name);
        System.out.println("age    = "+age);
        System.out.println("address= "+address);
        System.out.println("job    = "+job);
    }
    void setAddress(String address)
    {
        String add=address;
    }
    String getAddress(String address)
    {
        return address;
    }
 
    public static void main(String[] args)
    {
        Scanner input=new Scanner (System.in);
        Person p = new Person();
        
        System.out.print("name is ");
        String s=input.next();
        System.out.print("age is ");
        byte x=input.nextByte();
        System.out.print("address is ");
        String y=input.next();
        System.out.print("job is ");
        String z=input.next();
        Person P = new Person(s,x,y,z);
        P.Display();
}
}

Its Very simple Well if u define any type of Constructor with arguments in a class then u have to define also a default Constructor with no arguments .java not provide a default Constructor in this your case .Java Can provide default Constructor when no Constructor in the class.

I write a java program but there is an error in one line I want you sir to help me find the correction of this error

3 solutions

Solution 1

Solution 3

Solution 2

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