Need help with my JAVA homework ASAP Thx Create a Java progr

Need help with my JAVA homework. ASAP. Thx

Create a Java program that asks the user to enter four numbers between 0-9, then checks to see how many pairs of numbers there are (in any order). There can be 0 pairs, 1 pair, or 2 pairs. Once a number is assigned to a pair, it cannot be used to form a different pair. For example: If the user enters 0 10 1 the output would be 2 pair. If the user enters 9 9 5 5 the output would be 2 pair If the user enters 9 9 9 9 the output would be 2 pair If the user enters 9 9 9 5 the output would be 1 pair If the user enters 3 2 13 the output would be 1 pair If the user enters 5 6 7 1 the output would be 0 pair If the user enters 10 11 the output would be 1 pair. See below for a sample of runs. Prove a printout of properly formatted source code (your entire Java program). Provide 4 example outputs/test case: showing all four possibilities - no pairs, 1 pair, 2 pairs and a case with 1 pair when three numbers match.

Solution

import java.util.Scanner;

public class Pair

{

public static void main(String args[])

{

Scanner s=new Scanner(System.in);

int p2=0,p3=0;

int a,b,c,d;

System.out.println(\"\ enter a b c and d:\");

a=s.nextInt();

b=s.nextInt();

c=s.nextInt();

d=s.nextInt();

if(a==b)

{

p2++;

if(c==d)p2++;

}

if(b==c)

{

p2++;

if(a==d)

p2+;

}

if(a==c)

{

p2++;

if(b==d)p2++;

}

if(a==b&&b==c)

p3++;

if(b==c&&c==d)p3++;

if(a==c&&c==d)p3++;

System.out.println(p2+\" two element pairs \");

System.out.println(p3+\" three element pairs\");

}

}

import java.util.Scanner;
public class Pair
{
public static void main(String args[])
{
Scanner s=new Scanner(System.in);
int p2=0,p3=0;
int a,b,c,d;
System.out.println(\"\ enter a b c and d:\");
a=s.nextInt();
b=s.nextInt();
c=s.nextInt();
d=s.nextInt();
if(a==b)
{
p2++;
if(c==d)p2++;
}
if(b==c)
{
p2++;
if(a==d)
p2+;
}
if(a==c)
{
p2++;
if(b==d)p2++;
}
if(a==b&&b==c)
p3++;
if(b==c&&c==d)p3++;
if(a==c&&c==d)p3++;
System.out.println(p2+\" two element pairs \");
System.out.println(p3+\" three element pairs\");
}
}