Thread: how to do this simple java program?

Plz read the question very carefully.I need call all the member methods from the main method by creating object only.And all the member methods are necessary.The constructor is parametrized.I need the answer according to the question only and not in ur own way.
Define a class student
described as below:-
Data Members-
name,age,m1,m2,m
3(marks in 3 sub)
,maximum,average
Member Methods-
1)A parametrized
constructor to initialize
the data members
2)To accept the details of a
student
3)To compute average and
maximum out of 3 marks
4)To display
name,age,marks in 3
sub,max,avg
Write a main method
create an object and CALL
THE ABOVE METHODS

import java.io.*;
class student
{
String name;
int age,m1,m2,m3,maxi;
float avg;
student(String n,int a,int m4,int m5,int m6)
{
age=a;
m1=m4;
m2=m5;
m3=m6;
name=n;
maxi=0;
avg=0;
}
void accept(String args[])throws IOException
{
BufferedReader in=new BufferedReader(new InputStreamReader(System.in));
System.out.println("Enter name");
String a=in.readLine();
System.out.println("Enter age");
int ae=Integer.parseInt(in.readLine());
System.out.println("Enter marks1");
int m7=Integer.parseInt(in.readLine());
System.out.println("Enter marks 2");
int m8=Integer.parseInt(in.readLine());
System.out.println("Enter marhks 3");
int m9=Integer.parseInt(in.readLine());
student obj=new student(a,ae,m7,m8,m9);
}
void compute()
{
int t=m1+m2+m3;
avg=(float)(t/3f);
if(m1>m2&&m1>m3)
maxi=m1;
else if(m2>m1&&m2>m3)
maxi=m2;
else
maxi=m3;
}
void display()
{
System.out.println("Name="+name);
System.out.println("marks 1 ="+m1);
System.out.println("marks 2 ="+m2);
System.out.println("marks 3="+m3);
System.out.println("avg= "+avg);
System.out.println("max="+maxi);
}
public static void main(String args[])throws IOException
{
student obj1=new student();
obj1.accept();
obj1.compute();
obj1.display();
}
}

It shows a syntax error

@avistein You haven't defined a default constructor for the class.
You have defined the parameterized constructor for your class and when there is a parameterized constructor in the class then you have to either call the parameterized constructor or define a default constructor for the class.
Or you can also do the constructor chaining.

This is my first post and hope this help you.
Sorry for my bad english as i ain't a english speaker.

@Bhawani, but the question says to create a constructor and not 2.So how to do that?

I don't know how to format it.I am new here.

Very sorry to say that I have posted a wrong code.Actually I was trying to modify the code earlier in my pc and and I have posted that code only.Here is the original code:

//constructor program.
//to accept values using a function accept()and then pass the values to the parametrized constructor and then call all the methods from the main method by creating an object,but how?
import java.io.*;
class student1
{
//instance variable
String name;
int age,m1,m2,m3,maxi;
float avg;
//parameterized constructor to initialize the instance variable
student1(String n,int a,int m4,int m5,int m6)
{
age=a;
m1=m4;
m2=m5;
m3=m6;
name=n;
}
//to accept the details from the user and then pass them to the parametrized constructor
void accept(String args[])throws IOException
{
BufferedReader in=new BufferedReader(new InputStreamReader(System.in));
System.out.println("Enter name");
String a=in.readLine();
System.out.println("Enter age");
int ae=Integer.parseInt(in.readLine());
System.out.println("Enter marks1");
int m7=Integer.parseInt(in.readLine());
System.out.println("Enter marks 2");
int m8=Integer.parseInt(in.readLine());
System.out.println("Enter marhks 3");
int m9=Integer.parseInt(in.readLine());
student1 obj=new student1(a,ae,m7,m8,m9);
}
//to calculate the average and maximum
void compute()
{
int t=m1+m2+m3;
avg=(float)(t/3f);
if(m1>m2&&m1>m3)
maxi=m1;
else if(m2>m1&&m2>m3)
maxi=m2;
else
maxi=m3;
}
//display the details of the student
void display()
{
System.out.println("Name="+name);
System.out.println("marks 1 ="+m1);
System.out.println("marks 2 ="+m2);
System.out.println("marks 3="+m3);
System.out.println("avg= "+avg);
System.out.println("max="+maxi);
}
//main method
public static void main(String args[])throws IOException
{
//I want to create the object to call all the member methods listed in the question,but how?
student1 obj1=new student1(); // an error occurs here-cannot find symbol-constructor student1()
obj1.accept();
obj1.compute();
obj1.display();
}
}
//I want to use only 1 constructor and not constructor overloading as it is not said in the question

The error is : cannot find symbol-constructor student1()

Here is the errorError.jpgError message.jpg

@Norm,u r very bad.Why don't u see the program? Ur demand is 2 much.I have given the error,and then also u r demanding so.U must quit.U don't know,how to help ppl.

Sorry, 4 being rude 2 u.But I really don't know what you really meant by 4matting the code.I really don't know what is indentation and how to do it.I am only a class 10 student,who has a xam in a few days.I don't know how to get that full text of error message in BlueJ.Plz help me.So how can I do the program according to the question.Plz help.And once again sorry!

@Norm I don't know to format in command prompt.It's not in our syllabus.We have only BlueJ.When I saw the option in BlueJ it said that it is auto-intended.