在Java中，XOR运算符的重要性是什么？

public class XORTest1 {
   public static void main(String[] args) {
      boolean x = false;
      boolean y = false;
      boolean xXorY = x ^ y;
      System.out.println("false XOR false: "+xXorY);
      x = false;
      y = true;
      xXorY = x ^ y;
      System.out.println("false XOR true: "+xXorY);
      x = true;
      y = false;
      xXorY = x ^ y;
      System.out.println("true XOR false: "+xXorY);
      x = true;
      y = true;
      xXorY = x ^ y;
      System.out.println("true XOR true: "+xXorY);
   }
}

false XOR false: false
false XOR true: true
true XOR false: true
true XOR true: false

public class XORTest2 {
   public static void main(String[] args) {
      String str1 = "1010100101";
      String str2 = "1110000101";
      StringBuffer sb = new StringBuffer();
      for (int i = 0; i < str1.length(); i++) {
         sb.append(str1.charAt(i)^str2.charAt(i));
      }
      System.out.println(sb);
   }
}

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