assignment4

labs/lab5/WHILE LOOP.txt

@@ -0,0 +1,31 @@
+// WHILE LOOP
+import java.util.Scanner;
+
+public class PowersOf2
+{
+    public static void main(String[] args)
+    {
+        int numPowersOf2;        // How many powers of 2 to compute
+        int nextPowerOf2 = 1;    // Current power of 2 (starting with 2^0 = 1)
+        int exponent = 0;        // Exponent for current power of 2 (starting with 0)
+        Scanner scan = new Scanner(System.in);
+
+        System.out.println("How many powers of 2 would you like printed?");
+        numPowersOf2 = scan.nextInt();
+
+        // Print a message saying how many powers of 2 will be printed
+        System.out.println("Here are the first " + numPowersOf2 + " powers of 2:");
+
+        // Print the powers of 2
+        while (exponent < numPowersOf2)
+        {
+            System.out.println("2^" + exponent + " = " + nextPowerOf2);
+
+            // Compute the next power of 2 by doubling the current one
+            nextPowerOf2 *= 2;
+
+            // Increment exponent
+            exponent++;
+        }
+    }
+}