diff --git a/IndexPoint.java b/IndexPoint.java
index 8b13789..2940ff5 100644
--- a/IndexPoint.java
+++ b/IndexPoint.java
@@ -1 +1,51 @@
+Jeremiah Hasudungan IF 39-07 1301154287 
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package indexpoint;
+
+import java.util.Scanner;
+
+/**
+ *
+ * @author Jeremi
+ */
+public class IndexPoint {
+
+    /**
+     * @param args the command line arguments
+     */
+    public static void main(String[] args) {
+        // TODO code application logic here
+        Scanner scan = new Scanner(System.in);
+        double s_mid,s_end,s_quiz,s_avg;
+        System.out.println(" Mid Term Score : ");
+        s_mid = scan.nextInt();
+        System.out.println(" End Term Score : ");
+        s_end = scan.nextInt();
+        System.out.println(" Quiz Score     : ");
+        s_quiz = scan.nextInt();
+        s_avg = (s_mid*0.35 + s_end*0.4 + s_quiz*0.25);
+        
+        if(s_avg >=85 && s_avg <=100){
+            System.out.println(" Grade :  Excellent");
+        }
+        else if(s_avg >= 75 && s_avg < 85){
+            System.out.println(" Grade : Very Good ");
+        }
+        else if(s_avg >=65 && s_avg < 75){
+            System.out.println(" Grade : Good ");
+        }
+        else if(s_avg >=50 && s_avg < 65){
+            System.out.println(" Grade : Accepted ");
+        }
+        else if(s_avg >=0 && s_avg <50){
+            System.out.println(" Grade : Failed ");
+        }
+    }
+    
+}
+
 
diff --git a/PrimeNumber.java b/PrimeNumber.java
index 8b13789..da29ad2 100644
--- a/PrimeNumber.java
+++ b/PrimeNumber.java
@@ -1 +1,44 @@
+Jeremiah Hasudungan IF-3907 1301154287
+
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package primenumber;
+
+import java.util.Scanner;
+
+/**
+ *
+ * @author Jeremi
+ */
+public class PrimeNumber {
+
+    /**
+     * @param args the command line arguments
+     */
+    public static void main(String[] args) {
+        // TODO code application logic here
+            Scanner scan = new Scanner(System.in);
+            System.out.println(" Masukan Bilangan Yang akan di cek : ");
+            int bilangan = scan.nextInt();
+            boolean prime = true;
+            
+            for (int i=2; i<bilangan; i++){
+    
+                if ((bilangan % i) == 0) {
+                    prime = false; break;
+
+                    }
+                }
+            if (prime)
+                System.out.println(bilangan + " Merupakan bilangan prima ");
+            else
+                System.out.println(bilangan + " Bukan bilangan prima  " );
+    }
+                    
+    }
+    
+
 
diff --git a/TemperatureConvert.java b/TemperatureConvert.java
index e69de29..3021ba7 100644
--- a/TemperatureConvert.java
+++ b/TemperatureConvert.java
@@ -0,0 +1,100 @@
+Jeremiah Hasudungan IF 39-07 1301154287
+
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package temperaturconvert;
+
+import java.util.Scanner;
+
+/**
+ *
+ * @author Jeremi
+ */
+public class TemperaturConvert {
+
+    /**
+     * @param args the command line arguments
+     */
+    public static void main(String[] args) {
+        // TODO code application logic here
+        
+        Scanner scanC = new Scanner(System.in);
+        Scanner scanF = new Scanner(System.in);
+        Scanner scanR = new Scanner(System.in);
+        Scanner scanP = new Scanner(System.in);
+        Scanner scanP2 = new Scanner(System.in);
+        Scanner scanP3 = new Scanner(System.in);
+        Scanner scanP4 = new Scanner(System.in);
+        
+        System.out.println(" Pilih Suhu yang akan di masukan ");
+        System.out.println(" 1. Celcius ");
+        System.out.println(" 2. Reamur  ");
+        System.out.println(" 3. Fahrenheit ");
+        int pil = scanP.nextInt();
+        switch (pil){
+            
+            case 1 :
+                System.out.println(" Masukan Derajat Celcius ");
+                double cel = scanC.nextDouble();
+                System.out.println(" Kemana akan dikonvert ");
+                System.out.println(" 1. Reamur  ");
+                System.out.println(" 2. Fahrenheit ");
+                int pil2 = scanP2.nextInt();
+                    switch (pil2){
+                        case 1 :
+                            double hasilReamur1 = cel*0.8;
+                            System.out.println(hasilReamur1 + " Reamur ");
+                            break;
+                        case 2 :
+                            double hasilFahrenheit1 = (cel*1.8)+32;
+                            System.out.println(hasilFahrenheit1 + " Fahreinheit ");
+                            break;
+                    }
+                    break;
+            case 2 :
+                System.out.println(" Masukan Derajat Reamur ");
+                double rea = scanR.nextDouble();
+                System.out.println(" Kemana akan dikonvert ");
+                System.out.println(" 1. Celcius ");
+                System.out.println(" 2. Fahreinheit ");
+                int pil3 = scanP3.nextInt();
+                switch (pil3) {
+                    case 1 :
+                        double hasilCelcius1 = rea/0.8;
+                        System.out.println(hasilCelcius1 + " Celcius ");
+                        break;
+                    case 2 :
+                        double hasilFahrenheit2 = (rea*2.25)+32;
+                        System.out.println(hasilFahrenheit2 + " Fahreinheit ");
+                        break;
+                    }
+                break;
+                
+            case 3 :
+                System.out.println(" Masukan Derajat Fahrenheit ");
+                double F = scanF.nextDouble();
+                System.out.println(" Kemana akan dikonvert ");
+                System.out.println(" 1. Celcius ");
+                System.out.println(" 2. Fahreinheit ");
+                int pil4 = scanP4.nextInt();
+                switch (pil4) {
+                    
+                    case 1 :
+                        double hasilCelcius2 = (F-32)/1.8;
+                        System.out.println(hasilCelcius2 + " Celcius ");
+                        break;
+                    case 2 :
+                        double hasilReamur2 = (F-32)/2.25;
+                        System.out.println(hasilReamur2 + " Reamur ");
+                        break;
+                }
+                break;
+        }
+    }
+}
+    
+
+