Define a class called ‘twoInt’ with two public integer fields a and b
In the constructor of ‘twoInt’, initialize the a and b to be 1 and 2
Create an instance ‘mytwoInt’ in the main method
Write a method ‘swap’ (not the method of the class ‘twoInt’) and pass the above instance ‘mytwoInt’ into the method, swap two a and b in the method
Print out a and b in the main method
System.out.print(object.a + ‘ ‘ + object.b);
Swap(object);
System.out.print(object.a + ‘ ‘ + object.b);

Need help
My Code:

``````public class TwoInt
{
public static void main (String [] args)
{
int a;
int b;

TwoInt myTwoInt = new TwoInt();

System.out.println(myTwoInt.a + " " + myTwoInt.b);

}

public TwoInt()
{
a = 1;
b = 2;
}

public void swap (TwoInt myTwoInt)
{
int tmp = a;

a = b;
b = tmp;

System.out.println(myTwoInt.a + " " + myTwoInt.b);

}
}
``````

## All 8 Replies

``````  public TwoInt()
{
//a = 1;
//b = 2;

swab(a,b);

}
``````

if it did not work, try

let me know if this works

No that did not work, the output should give 1 and 2 and then a and b shouel swap using that swap method and passing the instance object into the method

``````public class TwoInt
{

int a;
int b;
public static void main (String [] args)
{

TwoInt myTwoInt = new TwoInt();

System.out.println(myTwoInt.a + " " + myTwoInt.b);

}

public TwoInt()
{
a = 1;
b = 2;
}

public void swap (TwoInt myTwoInt)
{
int tmp = a;

a = b;
b = tmp;

System.out.println(myTwoInt.a + " " + myTwoInt.b);

}
}
``````

Try this, copy paste

``````public class TwoInt
{

int a;
int b;
public static void main (String [] args)
{

TwoInt myTwoInt = new TwoInt();

System.out.println(myTwoInt.a + " " + myTwoInt.b);
myTwoInt.swap(myTwoInt);

}

public TwoInt()
{
a = 1;
b = 2;
}

public void swap (TwoInt myTwoInt)
{
int tmp = myTwoInt.a;

a = myTwoInt.b;
b = tmp;

System.out.println(myTwoInt.a + " " + myTwoInt.b);

}
}
``````

This should work

Thanks man, genius. Do you mind if i have ur email? i want you to help me with another one

Just post a new and I will work with you,

Here is the other Bro

Define an integer array ‘arr’ with size 2 in the main method and initialize the two elements in ‘arr’ to be 1 and 2
Write a method ‘swap’ and pass the ‘arr’ into the method, swap two elements of the ‘arr’ in the method
Print out all elements in ‘arr’ in the main method
System.out.print(arr + ‘ ‘ + arr);
Swap(arr);
System.out.print(arr + ‘ ‘ + arr);

``````public class ArrayInt
{
public static void main (String[] args)
{
int [] arr = new int ;

arr   = 1;
arr  = 2;

System.out.prinln(arr + " " + arr);
}

public void swap (int [] arr)
{
int tmp = myTwoInt.a;
a = myTwoInt.b;
b = tmp;
System.out.println(arr + " " + arr);
}
}
}
``````
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