LP MATIF pertemuan 3 dan LA Relasi 1IA02

LP:
1.Apa yang kalian ketahui tentang fungsi
2.Jelaskan tentang fungsi satu-satu dan fungsi pada


LA:

import java.io.*;

class relasiLA

{

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

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

{

System.out.print("Masukkan Banyak Himpunan A: ");

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

int himpA [] = new int[x];

for(int i=0; i

{

System.out.print("Masukkan Elemen A ke-"+(i+1)+" :");

String a=input.readLine();

himpA[i]=Integer.parseInt(a);

}

System.out.print("Anggota Himpunan A = {");

for(int i=0;i

{

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

if(i!=x-1)

System.out.print(",");

}

System.out.println("}");

System.out.print("Masukkan Banyak Himpunan B: ");

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

int himpB [] = new int[y];

for(int j=0; j

{

System.out.print("Masukkan Elemen B ke-"+(j+1)+" :");

String b=input.readLine();

himpB[j]=Integer.parseInt(b);

}

System.out.print("Anggota Himpunan B = {");

for(int j=0;j

{

System.out.print(himpA[j]);2

if(j!=y-1)

System.out.print(",");

}

System.out.println("}");

System.out.println();

System.out.println ("=======================");

System.out.println (" Jenis Relasi " );

System.out.println ("=======================");

System.out.println ("1. reflektif sederhana");

System.out.println ("2. simestris sederhana");

System.out.println ("3. transitif sederhana");

System.out.println ("=======================");

System.out.print ("Masukan Jenis Relasi yang diinginkan : ");

String b=input.readLine();

int pil=Integer.parseInt(b);

System.out.println();

switch (pil)

{

case 1:

//membuat relasi reflektif himpunan A

System.out.print ("Relasi R = {");

for (int i=0; i

{

for (int j=0; j

{

if (himpA[i]==himpB[j])

{

System.out.print ("("+himpA[i]+","+himpB[j]+")");

if(j!=y-1)

System.out.print (",");

}

}

}

System.out.println ("}");

System.out.println ();

break;

case 2:

//membuat relasi simetris himpunan A

System.out.print ("Relasi R = {");

for (int i=0; i

{

for (int j=0; j

{

if (himpA[i]!=himpB[j])

{

System.out.print ("("+himpA[i]+","+himpB[j]+")");

if(j!=y-1)

System.out.print (",");

}

}

if(i!=x-1)

System.out.print (",");

}

System.out.println ("}");

System.out.println ();

break;

case 3:

//membuat relasi transitif

System.out.print ("Relasi R = {");

for (int i=0; i

{

for (int j=0; j

{

if (himpA[i]!= himpB[j])

{

if (i%2!=0)

{

if (j%2==0)

{

System.out.print ("("+himpA[i]+","+himpB[j]+")");

if(j!=y-1)

System.out.print (",");

}

}

else

{

if (j%2!=0)

{

System.out.print ("("+himpA[i]+","+himpB[j]+")");

if(j!=y-1)

System.out.print (",");

}

}

}

}

}

System.out.println ("}");

System.out.println ();

break;

default:

System.out.println ("Pilihan tak ada dalam daftar!!");

break;

}

}

}