error in the Constructor section of the Java-methods tutori

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error in the Constructor section of the Java-methods tutori

by ric1950 » Wed Mar 16, 2011 5:49 am

I have found an error in the Constructor section of the Java-methods tutorial

"Most often you will need a constructor that accepts one or more parameters. Parameters are added to a constructor in the same way that they are added to a method:just declare them inside the parentheses after the constructor's name.

Here is a simple example that uses a constructor:

// A simple constructor.
class MyClass {
int x;

// Following is the constructor
MyClass(int i ) {
x = 10;

You would call constructor to initialize objects as follows:

class ConsDemo {
public static void main(String args[]) {
MyClass t1 = new MyClass( 10 );
MyClass t2 = new MyClass( 20 );
System.out.println(t1.x + " " + t2.x);

This would produce following result:

10 20"

This is not correct. The printout would be "10 10"

To get the intended printout the constructor needs to be:

MyClass(int i ) {
x = i;

I am new to Java and this section confused me until I tested it so it would be good to change it for future newbies.

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by tutorialspoint » Mon Mar 21, 2011 2:40 am

Thanks for pointing this out. I have fixed it.
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