Membuat Program IPK

 package ujian401;

import java.io.*;

public class khs {

    int totalnilai;

    int uts[] = new int[10];

    int uas[] = new int[10];

    String makul[] = new String[10];

    String huruf[] = new String[10];

    int total[] = new int[10];

    String kdmk[] = new String[10];

    int sks[] = new int[10];

    float ip;

    int x,y=1,z=1,jmlsks=0;

    float jmlsksdiambil;

    float nilai=0;

    void inputan() throws IOException {

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

        for(x=1;x<=7;x++){

            if(x==1){

                sks[x]=4;

                makul[x]="SISTEM BERKAS";

                kdmk[x]="44202";

                System.out.println("SISTEM BERKAS");

            }

            else if(x==2){

                sks[x]=2;

                kdmk[x]="44203";

                makul[x]="Matematika informatika 4";

                System.out.println("Matematika informatika 4");

            }

            else if(x==3){

                sks[x]=2;

                kdmk[x]="44204";

                makul[x] = "Pemrograman Berbasis Objek";

                System.out.println("Pemrograman Berbasis Objek");

            }

            else if(x==4){

                sks[x]=2;

                kdmk[x]="44207";

                makul[x] = "BAHASA INGGRIS ";

                System.out.println("BAHASA INGGRIS");

            }

            else if(x==5){

                sks[x]=4;

                kdmk[x]="44209";

                makul[x] = "Matematika Lanjut";

                System.out.println("Matematika Lanjut");

            }

            else if(x==6){

                sks[x]=4;

                kdmk[x]="44211";

                makul[x]= "Sistem Informasi Manajemen";

                System.out.println("Sistem Informasi Manajemen");

            }

            else if(x==7){

                sks[x]=2;

                kdmk[x]="44212";

                makul[x]="PRAKTIKUM ALGORITMA DAN PEMROGRAMAN";

                System.out.println("PRAKTIKUM ALGORITMA DAN PEMROGRAMAN");

            }

            System.out.print("Nilai UTS     : ");

            uts[x]= Integer.parseInt(input.readLine());

            System.out.print("Nilai UAS     : ");

            uas[x]=Integer.parseInt(input.readLine());

            jmlsks=jmlsks+sks[x];

            totalnilai=totalnilai+(uas[x]+uts[x])/2;

        }

    }

    void nilaihuruf(){

        while(y!=x){

            total[y]=(uts[y]+uas[y])/2;

            if(total[y]>=85){

                nilai=nilai+(4*sks[y]);

                huruf[y]="A";

                jmlsksdiambil=jmlsksdiambil+4;

            }

            else if(total[y]>=70){

                nilai=nilai+(3*sks[y]);

                huruf[y]="B";

                jmlsksdiambil=jmlsksdiambil+3;

            }

            else if(total[y]>=60){

                nilai=nilai+(1*sks[y]);

                huruf[y]="C";

                jmlsksdiambil=jmlsksdiambil+2;

            }

            else{

                nilai=nilai+0;

                huruf[y]="D";

                jmlsksdiambil=jmlsksdiambil+2;

            }

            y++;

        }

        ip = nilai/jmlsks;

    }

    void tampilan(){

        System.out.println("NO || Kode MK  ||       Mata Kuliah         ||  SKS  ||  Nilai Huruf");

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

        for(z=1;z<y;z++){

            System.out.println(z+"       "+kdmk[z]+"       "+makul[z]+"                    "+sks[z]+"             "+huruf[z]);

        }

        System.out.println("JUMLAH SKS = "+jmlsks);

        System.out.println("IP SEMESETER = "+ip);

        System.out.println("JUMLAH SKS DIAMBIL = "+jmlsksdiambil);

    }

}

berikut contoh program outputnya :

Gambar 1. Memasukkan Nilai 

 Gambar 2. Hasil Perhitungan Nilai