program fungsi dan relasi

import java.io.*;

class fungsi

{

public static void main(String[] args) throws Exception

{

BufferedReader input=new BufferedReader(new InputStreamReader(System.in));

int n=0;

int k=0;

System.out.print("masukan banyak relasi:");

int x=Integer.parseInt(input.readLine());

int dmn []=new int[x];

int range []=new int[x];

for(int i=0;i

{

System.out.print("masukan domain ke-"+(i+1)+": ");

dmn[i]=Integer.parseInt(input.readLine());

System.out.print("masukan range ke-"+(i+1)+": ");

range[i]=Integer.parseInt(input.readLine());

}

System.out.print("domain={");

for(int i=0;i

{

System.out.print(dmn[i]);

if(i!=x-1)

System.out.print(",");

}

System.out.println("}");

System.out.print("range={");

for(int i=0;i

{

System.out.print(range[i]);

if(i!=x-1)

System.out.print(",");

}

System.out.println("}");

int i=0;

while(i

{

if (dmn[i]==dmn[i+1])

{

n=n+1;

}

if (range[i]==range[i+1])

{

k=k+1;

}

i=i+1;

}

System.out.println("fugsinya:");

for(i=0;i

{

System.out.println("("+dmn[i]+","+range[i]+")");

}

if (n!=0)

{

System.out.println("relasi tetapi bukan fungsi");

}

else

{

System.out.println("relasi dan juga fungsi");

if (k!=0)

{

System.out.println("fungsi tetapi bukan satu-satu");

System.out.println("fungsi onto");

}

else

{

System.out.println("fungsi satu-satu");

}

}

}

}

hasil dari program tersebut adalah seperti berikut :