update,

_resources/it114105/itp3914/Lab08/Ex8.java

@@ -0,0 +1,38 @@
+import java.util.Arrays;
+import java.util.DoubleSummaryStatistics;
+import java.util.Scanner;
+import java.util.stream.DoubleStream;
+
+class Ex8{
+    public static void main(String[] args) {
+        Scanner input = new Scanner(System.in);
+        double[] values = new double[10];
+        int index = 0;
+        while(index < 10){
+            double value = input.nextDouble();
+            if(value == -1)
+                break;
+            if(value > 0)
+                values[index++] = value;
+        }
+
+        double sum, mean, max, min, mu, sd;
+        sum = mean = mu = sd = 0.0;
+        min = max = values[0];
+        for(int i = 0; i < index; i++){
+            sum += values[i];
+            if(max < values[i])
+                max = values[i];
+            if(min > values[i])
+                min = values[i];
+        }
+        mean = mu = sum/index;
+        double tmpsum = 0.0;
+        for(int i = 0; i < index; i++)
+            tmpsum += Math.pow((values[i]-mu) , 2);
+    
+        sd = Math.sqrt(tmpsum/index);
+        System.out.printf("sum=%.2f, mean=%.2f, maximum=%.2f, minimum=%.2f, and standard deviation=%.2f\n", sum, mean, max, min, sd);
+
+    }
+}