diff --git a/IndexPoint.java b/IndexPoint.java
index 8b13789..6bd7bdc 100644
--- a/IndexPoint.java
+++ b/IndexPoint.java
@@ -1 +1,31 @@
-
+import java.util.Scanner;
+public class Nilai {
+    public static void main (String[] args) {
+        double nilaiAkhir, UAS, UTS, Quiz; 
+        Scanner cin = new Scanner(System.in);
+        System.out.print("Nilai UTS: ");
+        UTS=cin.nextDouble();
+	System.out.print("Nilai UAS: ");
+	UAS=cin.nextDouble();
+	System.out.print("Nilai Quiz: ");
+	Quiz=cin.nextDouble();
+	
+	nilaiAkhir=(0.35*UTS)+(0.4*UAS)+(0.25*Quiz);
+	
+	if (nilaiAkhir>=85 && nilaiAkhir<=100) {
+		System.out.println("Excellent");
+	}
+	else if (nilaiAkhir>=75 && nilaiAkhir<=84) {
+		System.out.println("Very Good");
+	}
+	else if (nilaiAkhir>=65 && nilaiAkhir<=74) {
+		System.out.println("Good");
+	}
+	else if (nilaiAkhir>=50 && nilaiAkhir<=64) {
+		System.out.println("Accepted");
+	}
+	else if (nilaiAkhir>=0 && nilaiAkhir<=49) {
+		System.out.println("Failed");
+	}
+    }
+}
\ No newline at end of file
diff --git a/PrimeNumber.java b/PrimeNumber.java
index 8b13789..1b3caff 100644
--- a/PrimeNumber.java
+++ b/PrimeNumber.java
@@ -1 +1,23 @@
+package bilangan.prima;
+import java.util.Scanner;
+public class BilanganPrima {
 
+    public static void main(String[] args) {
+        int a, b;
+	int c=0;
+        Scanner cin = new Scanner(System.in);
+	System.out.print("Masukkan Angka : ");
+	a=cin.nextInt();
+	for (b=1 ; b<=a ; b++) {
+		if (a % b == 0) {
+                    c=c+1;
+		}
+	}
+	if (c==2) {
+		System.out.println(a+" merupakan Bilangan Prima");
+	}
+	else {
+		System.out.println(a+" bukan Bilangan Prima");
+        }   
+    }
+}
\ No newline at end of file
diff --git a/TemperatureConvert.java b/TemperatureConvert.java
index e69de29..baea08e 100644
--- a/TemperatureConvert.java
+++ b/TemperatureConvert.java
@@ -0,0 +1,34 @@
+import java.util.Scanner;
+public class ConvertSuhu {
+    public static void main(String[] args) {
+    double suhu, Fahrenheit, Reamur, Kelvin;
+    int b;
+    Scanner cin = new Scanner(System.in);
+    System.out.println("KONVERSI SUHU");
+    System.out.print("Masukkan suhu dalam satuan Celcius: ");
+    suhu=cin.nextDouble();
+    System.out.println("Suhu akan diubah ke: ");
+    System.out.println("1. Fahreheit");
+    System.out.println("2. Reamur");
+    System.out.println("3. Kelvin");
+    System.out.print("Masukkan Pilihan: ");
+    b=cin.nextInt();
+    
+    Fahrenheit=(1.8*suhu)+32;
+    Reamur=0.8*suhu;
+    Kelvin=suhu+273;
+    
+    if (b==1) {
+	System.out.println("Convert suhu Celcius ke Fahrenheit: "+Fahrenheit);
+	}
+    else if (b==2) {
+	System.out.println("Convert suhu Celcius ke Reamur: "+Reamur);
+	}
+    else if (b==3) {
+	System.out.println("Convert suhu ke Kelvin: "+Kelvin);
+	}
+    else {
+	System.out.println("Tidak ada pilihan");
+	}
+    }
+}
\ No newline at end of file