labs

labs/lab10/Power.java

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+// **************************************************************** 
+// Power.java 
+// 
+// Reads in two integers and uses a recursive power method 
+// to compute the first raised to the second power. 
+// **************************************************************** 
+import java.util.Scanner; 
+public class Power 
+{ 
+ public static void main(String[] args) 
+ { 
+ int base, exp; 
+ int answer; 
+ Scanner scan = new Scanner(System.in); 
+ System.out.print("Welcome to the power program! "); 
+ System.out.println("Please use integers only."); 
+ 
+ //get base 
+ System.out.print("Enter the base you would like raised to a power: "); 
+ base = scan.nextInt(); 
+ //get exponent 
+ System.out.print("Enter the power you would like it raised to: "); 
+ exp = scan.nextInt(); 
+ answer = power(base,exp); 
+ System.out.println(base + " raised to the " + exp + " is " + answer); 
+ } 
+ // ------------------------------------------------- 
+ // Computes and returns base^exp 
+ // ------------------------------------------------- 
+ public static int power(int base, int exp) 
+ { 
+ int pow; 
+ if (exp == 0) {
+    pow = 1;
+ } else {
+    pow = base*power(base, exp-1);
+ }
+ return pow;
+ //otherwise set pow to base*base^(exp-1) 
+ //return pow 
+ } 
+}