mencari kuadrat ..:)

import java.util.Scanner;
public class kuadrat{
    public static void main (String [] args){
        Scanner input= new Scanner(System.in);
        garis();
        System.out.println("       MENU PILIHAN   ");
        garis();
        System.out.println("1. MENGHITUNG KUADRAT");
        System.out.println("");
        System.out.println("2. EXIT");
        garis();
          System.out.println("Anda pilih nomor :");
          int pil=input.nextInt();
          switch (pil){
              case 1:{
                   System.out.println(" Menghitung mahasiswa");
                     System.out.println("Masukan datanya :");

                 int n=input.nextInt();
         int[]data=new int[10];
         for(int i=1;i<=n;i++){
              System.out.println("Data ke"+i+"=");

              System.out.println("angka :"); int angka=input.nextInt();
            
              int kuadrat = angka*angka;
               System.out.println("hasil kuadrat :" +kuadrat);
               System.out.println(" ");

             
         }
         break;
              }
              default:System.exit(0);
          }}
    static void garis(){
        System.out.println("--------------------------");

                         }


         }

quiss niiiy

import java.util.Scanner;
public class dhiyay {
    public static void main(String[] args){
        Scanner input=new Scanner(System.in);
        garis();
        System.out.println("            MENU PILIHAN                  ");
        garis();
        System.out.println("1. Menhitung Nilai Mahasiswa");
        System.out.println("");
        System.out.println("2. Exit");
        garis();
        System.out.println("");
        System.out.print("Anda pilih no   :");
        int pilih=input.nextInt();

        switch(pilih){
            case 1:{

                int[] npm=new int[20];
                String[] nama=new String[20];
                String[] jur=new String[20];
                String[] mk=new String[20];
                int[] n_tgas=new int[20];
                int[] n_uts=new int[20];
                int[] n_uas=new int[20];


                garis();
                System.out.println("    MENGHITUNG NILAI MAHASISWA");
                garis();
                System.out.println("");
                System.out.print("Masukan jumlah data ="); int n=input.nextInt();

                for(int i=1;i<=n;i++){
                    System.out.println("Data ke"+i +":");
                    System.out.print("NPM           :"); npm[i]=input.nextInt();
                    System.out.print("Nama          :"); nama[i]=input.next();
                    System.out.print("Jurusan       :"); jur[i]=input.next();
                    System.out.print("Mata Kuliah   :"); mk[i]=input.next();
                    System.out.print("Nilai tugas   :"); n_tgas[i]=input.nextInt();
                    System.out.print("Nilai UTS     :"); n_uts[i]=input.nextInt();
                    System.out.print("Nilai UAS     :"); n_uas[i]=input.nextInt();
                    double rata=(n_tgas[i]+n_uts[i]+n_uas[i])/3;
                    System.out.println("Nilai rata-rata ="+rata);

                }
                break;
                }
        default:System.exit(0);
        }
        }
static void garis(){
        System.out.println("==========================================");
    }
}

pertambahan

public class tambah{
    public static void main (String[] args){
        int [] data1={0,1,2,3,4,5};
        int [] data2={0,1,2,3,4,5};
        int jum,i,j;
        System.out.println("+ 0 1 2 3 4 5");
        System.out.println("--------------");
        for(i=0;i<=5;i++){
            System.out.print(i);
            for(j=0;j<=5;j++){
                jum=data1[i]+data2[j];
                System.out.print(" "+jum);
            }
           System.out.println(" ");
        }
    }
}

pengulangan 3 kali

public class bansal{
    public static void main(String [] args){
        String kal1="STMIK BANISALEH";
        String kal2="PEMPROGRAMAN";
        int i,j;
        for(i=1;i<=3;i++){
            System.out.println(" ");
            System.out.println(kal1);
            for(j=1;j<=3;j++){
                System.out.println(kal2);
            }
        }
    }
}

Menu Utama

import java.util.Scanner;
public class menu{
    public static void main (String [] args){
        Scanner input= new Scanner(System.in);
        garis();
        System.out.println("       MENU PILIHAN   ");
        garis();
        System.out.println("1. Menghitung rata - rata");
        System.out.println("");
        System.out.println("2. Menghitung bilangan kelipatan 4");
         System.out.println("");
         garis();
          System.out.println("Anda pilih nomor :");
          int pil=input.nextInt();
          switch (pil){
              case 1:{
                   System.out.println(" Menghitung rata - rata");
                   System.out.println("Masukan jumlah data :");

                 int n=input.nextInt();
                int[]data=new int[10];
                for(int i=1;i<=n;i++){
               System.out.println("Data ke"+i+"=");
               data[i]=input.nextInt();
         }
         int jum=0;
         for(int i=1;i<=n;i++){
             jum=jum+data[i];
         }
          System.out.println("Jumlah =" +jum);
          int rata=jum/n;
           System.out.println("Rata rata =" +rata);
           break;
              }
              case 2:{
                     System.out.println("Menghitung keliapatan 4");
                    System.out.println("Dari =");
                    int nilai_awal=input.nextInt();
                     System.out.println("Sampai =");
                     int nilai_akhir=input.nextInt();
                     for (int i=nilai_awal; i<=nilai_akhir;i++){
                         if (i%4==0){
                             System.out.println(i);
                         }
                     }
                     break;
              }
              default:System.exit(0);
          }}
    static void garis(){
        System.out.println("--------------------------");

                         }
         }
             

mencarii garis

Mencari garis

public class garis{

    public static void main (String [] args){

        garis();

        System.out.println("   MENU UTAMA");

        garis();

        System.out.println("1. Luas segitiga");

         System.out.println("2. Luas lingkaran");

         garis();}

    static void garis(){

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

    }

}

Output nya 

 

Bintang 5 & 6

-Input Bintang_5-

public class tugas_bintang5 {
public static void main (String [] args){
    int baris,m;
    for(int i=1;i<=7;i++){
        if(i<5){
        for (int j=1;j<=4;j++){
            if (j<=i)
                System.out.print("*");
            else
                System.out.print(" ");
        }}
        else{
            for (int j=1;j<=4;j++){
                m=i+j;
                if(m<=8)
                    System.out.print("*");
            else
                System.out.print(" ");

            }
        }
        System.out.println();
        }
    }

}



-Output-

* 
**
***
****
***
**
*  



-Input Bintang_6-

public class tugas_bintang6 {
public static void main (String [] args){
    int baris,m,x,y,n;
    for(int i=1;i<=7;i++){
        if(i<=4){
        for (int j=1;j<=7;j++){
            if (j<=4){
                m=i+j;
                if (5<=m)
                System.out.print("*");
            else
                System.out.print(" ");
        }
        else{
                x=j-3;
                if(x<=i)
                     System.out.print("*");
            else
                System.out.print(" ");
        }
        }}
        else
            for (int j=1;j<=7;j++){
               if(j<=4){
               y=i-3;
               if(y<=j)
                    System.out.print("*");
            else
                System.out.print(" ");
               }
               else{
                   x=j-3;
                   y=i-3;
                   n=x+y;
                   if(n<=5)
                        System.out.print("*");
            else
                System.out.print(" ");
                 
            }
        }
        System.out.println();
        }
    }

}





-Output-

     * 
   ***
 *****
*******
 *****
   ***
     *