diff --git a/IndexPoint.java b/IndexPoint.java
index 8b13789..49cba09 100644
--- a/IndexPoint.java
+++ b/IndexPoint.java
@@ -1 +1,37 @@
 
+import java.util.Scanner;
+public class IndexPoint {
+
+    /**
+     * @param args the command line arguments
+     */
+    public static void main(String[] args) {
+        int uts,uas,kuis;
+        double scr;
+        
+        Scanner scan = new Scanner(System.in);
+        System.out.println("Masukkan Nilai: ");
+        uts = scan.nextInt();
+        uas = scan.nextInt();
+        kuis = scan.nextInt();
+        
+        scr = (uts*0.35) + (uas*0.4) + (kuis*0.25);
+        
+        if(scr<=100 && scr>84){
+            System.out.println("Excellent");
+        }
+        else if(scr<=84 && scr>74){
+            System.out.println("Very Good");
+        }
+        else if(scr<=74 && scr>64){
+            System.out.println("Good");
+        }
+        else if (scr<=64 && scr>49){
+            System.out.println("Accepted");
+        }
+        else {
+            System.out.println("Failed");
+        }
+    }
+    
+}
\ No newline at end of file
diff --git a/PrimeNumber.java b/PrimeNumber.java
index 8b13789..3b3f7f2 100644
--- a/PrimeNumber.java
+++ b/PrimeNumber.java
@@ -1 +1,29 @@
 
+import java.util .Scanner;
+public class PrimeNumber {
+
+    /**
+     * @param args the command line arguments
+     */
+    public static void main(String[] args) {
+        int i, j=0;
+        
+        
+        Scanner scan= new Scanner(System.in);
+        
+        System.out.print("Enter your number: ");
+        int num=scan.nextInt();
+       
+        for(i = 1;i<=num;i++) {
+            if (num % i == 0){
+                j++;
+            }
+        }    
+        if (j==2){
+            System.out.println("bilangan prima");
+        }
+        else
+            System.out.println("bukan bilangan prima");
+        
+    }
+}
\ No newline at end of file
diff --git a/TemperatureConvert.java b/TemperatureConvert.java
index e69de29..0789c4b 100644
--- a/TemperatureConvert.java
+++ b/TemperatureConvert.java
@@ -0,0 +1,42 @@
+import java.util.Scanner;
+public class TempConvert {
+
+    /**
+     * @param args the command line arguments
+     */
+    public static void main(String[] args) {
+        
+        int option = 1;
+        float hasil;
+        Scanner input = new Scanner (System.in);
+        System.out.println("Input Suhu (Celcius): ");
+        float n = input.nextInt();
+        
+        
+        while (option > 0 & option <4){
+                System.out.println("Pilih Menu: ");
+                System.out.println("1. Fahrenheit");
+                System.out.println("2. Kelvin");
+                System.out.println("3. Reamur");
+                System.out.println("0. Keluar");
+                option = input.nextInt();
+            
+            switch(option){
+                case 1 : 
+                    hasil = (n*9/5 + 32);
+                    System.out.println(n+" Celcius = "+hasil+" Fahrenheit\n");
+                    break;
+                case 2 :
+                    hasil = (n+273);
+                    System.out.println(n+" Celcius = "+hasil+" Kelvin\n");
+                    break;
+                case 3 :
+                    hasil = (n*4/5);
+                    System.out.println(n+" Celcius = "+hasil+" Reamur\n");
+                    break;
+            }
+        }
+    }
+    
+    
+}
\ No newline at end of file