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4/A4.~ava

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+import java.util.Arrays;
+import java.util.Scanner;
+
+public class A4 {
+  public static void main(String args[]) {
+    double schueler[] = new double[18];
+    Scanner input = new Scanner(System.in);
+    for (int i = 0; i < schueler.length;i++ ) {
+        System.out.print((i+1) + ". ");
+        schueler[i] = input.nextDouble(); 
+    }
+    Arrays.sort(schueler);
+    for (int i = 0; i < schueler.length;i++ ) {
+        System.out.println((i+1)+". " + schueler[i]);
+    }
+    double durschnittlich = 0;
+    
+    for (int i = 0; i < schueler.length;i++ ) {
+        durschnittlich += schueler[i];
+    }
+     
+     System.out.println("Durschnittlich: " + (Math.round((durschnittlich/schueler.length) *10.0 )/10.0 )  );
+     
+  }  
+}