Bitwise Two

ardallie · ardallie · commit 36c8cf578e24 · 2021-08-11T23:11:27.000+01:00
diff --git a/src/easy/BitwiseTwo.java b/src/easy/BitwiseTwo.java
@@ -0,0 +1,45 @@
+package easy;
+
+/**
+ * Have the function BitwiseTwo(strArr) take the array of strings stored in strArr,
+ * which will only contain two strings of equal length that represent binary numbers,
+ * and return a final binary string that performed the bitwise AND operation on both strings.
+ * ---
+ * A bitwise AND operation places a 1 in the new string where
+ * there is a 1 in both locations in the binary strings,
+ * otherwise it places a 0 in that spot. For example:
+ * if strArr is ["10111", "01101"] then your program should return the string "00101"
+ */
+public class BitwiseTwo {
+
+  /**
+   * Bitwise Two function.
+   *
+   * @param strArr an array of two binary strings
+   * @return a string that performed the bitwise AND operation on both strings
+   */
+  private static String bitwiseTwo(String[] strArr) {
+
+    String s1 = strArr[0];
+    String s2 = strArr[1];
+    StringBuilder out = new StringBuilder();
+
+    for (int i = 0; i < s1.length(); i++) {
+      int lgAnd = Character.getNumericValue(s1.charAt(i)) & Character.getNumericValue(s2.charAt(i));
+      out.append(lgAnd);
+    }
+
+    return out.toString();
+  }
+
+  /**
+   * Entry point.
+   *
+   * @param args command line arguments
+   */
+  public static void main(String[] args) {
+    var result1 = bitwiseTwo(new String[]{"10111", "01101"});
+    System.out.println(result1);
+  }
+
+}
