diff --git a/IndexPoint.java b/IndexPoint.java
index 8b13789..4c3ef5d 100644
--- a/IndexPoint.java
+++ b/IndexPoint.java
@@ -1 +1,35 @@
-
+/*
+ * 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 task1;
+
+import java.util.Scanner;
+
+/**
+ *
+ * @author ASUS
+ */
+public class IndexPoint {
+    public static void main(String[] args) {
+        Scanner input = new Scanner(System.in);
+        System.out.print("Masukkan nilai UTS : ");
+        int UTS = input.nextInt();
+        System.out.print("Masukkan nilai UAS : ");
+        int UAS = input.nextInt();
+        System.out.print("Masukkan nilai Quiz: ");
+        int Quiz = input.nextInt();
+        double NilaiTotal = 0.35*UTS + 0.4*UAS + 0.25*Quiz;
+        if (NilaiTotal >=85 && NilaiTotal<=100)
+            System.out.println("Excelent");
+        else if(NilaiTotal >=75 && NilaiTotal <=84)
+            System.out.println("Very Good");
+        else if(NilaiTotal >=65 && NilaiTotal <=74)
+            System.out.println("Good");
+        else if(NilaiTotal >=50 && NilaiTotal <= 64)
+            System.out.println("Accepted");
+        else    
+            System.out.println("Failed");
+    }
+}
diff --git a/PrimeNumber.java b/PrimeNumber.java
index 8b13789..883f6ba 100644
--- a/PrimeNumber.java
+++ b/PrimeNumber.java
@@ -1 +1,35 @@
-
+/*
+ * 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 task1;
+
+import java.util.Scanner;
+
+/**
+ *
+ * @author ASUS
+ */
+public class PrimeNumber {
+
+    public static void main(String[] args) {
+        Scanner input = new Scanner(System.in);
+        System.out.println("Masukkan angka: ");
+        int x = input.nextInt();
+        int y = 0;
+        for (int i = 1;i<=x;i++)
+        {
+            if (x%i==0)
+                y+=1;
+        }
+            
+        if (y==2) 
+            System.out.println("Bilangan Prima");
+        else
+            System.out.println("Bukan bilangan prima");
+        
+        
+    }
+    
+}
diff --git a/TemperatureConvert.java b/TemperatureConvert.java
index e69de29..8a2b2d8 100644
--- a/TemperatureConvert.java
+++ b/TemperatureConvert.java
@@ -0,0 +1,45 @@
+/*
+ * 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 task1;
+
+import java.util.Scanner;
+
+/**
+ *
+ * @author ASUS
+ */
+public class TemperatureConvert {
+    public static void main(String[] args) {
+        Scanner input = new Scanner(System.in);
+        System.out.print("Masukkan suhu celcius: ");
+        int celcius = input.nextInt();
+        int reamur = celcius*4/5;
+        int fahrenheit = celcius*9/5+32;
+        int kelvin = celcius+273;
+        int menu = 1;
+        while (menu>0){
+        System.out.println("Menu convert");
+        System.out.println("1. Reamur");
+        System.out.println("2. Fahrenheit");
+        System.out.println("3. Kelvin");
+        System.out.println("0. Exit");
+        System.out.print("Pilih menu : ");
+        menu = input.nextInt();
+        switch (menu){
+            case 1: 
+                System.out.println(reamur);
+                break;
+            case 2:
+                System.out.println(fahrenheit);
+                break;
+            case 3:
+                System.out.println(kelvin);
+                break;
+        }
+    }
+    
+ }
+}