8260596: Comment cleanup in BigInteger

Reviewed-by: bpb

Author: wangweij

src/java.base/share/classes/java/math/BigInteger.java

@@ -465,7 +465,7 @@ private BigInteger(int signum, int[] magnitude) {
      * consists of an optional minus or plus sign followed by a
      * sequence of one or more digits in the specified radix.  The
      * character-to-digit mapping is provided by {@link
-     * Character#digit(char, char) Character.digit}.  The String may
+     * Character#digit(char, int) Character.digit}.  The String may
      * not contain any extraneous characters (whitespace, for
      * example).
      *
@@ -662,7 +662,7 @@ private static void destructiveMulAdd(int[] x, int y, int z) {
      * into a BigInteger.  The String representation consists of an
      * optional minus or plus sign followed by a sequence of one or
      * more decimal digits.  The character-to-digit mapping is
-     * provided by {@link Character#digit(char, char)
+     * provided by {@link Character#digit(char, int)
      * Character.digit}.  The String may not contain any extraneous
      * characters (whitespace, for example).
      *
@@ -3974,7 +3974,7 @@ public String toString(int radix) {
      * If {@code numZeros > 0}, appends that many zeros to the
      * specified StringBuilder; otherwise, does nothing.
      *
-     * @param sb        The StringBuilder that will be appended to.
+     * @param buf       The StringBuilder that will be appended to.
      * @param numZeros  The number of zeros to append.
      */
     private static void padWithZeros(StringBuilder buf, int numZeros) {
@@ -3993,7 +3993,7 @@ private static void padWithZeros(StringBuilder buf, int numZeros) {
      * (pre-pending with zeros) will be effected.
      *
      * @param radix  The base to convert to.
-     * @param sb     The StringBuilder that will be appended to in place.
+     * @param buf    The StringBuilder that will be appended to in place.
      * @param digits The minimum number of digits to pad to.
      */
     private void smallToString(int radix, StringBuilder buf, int digits) {
@@ -4626,7 +4626,7 @@ private int getInt(int n) {
      * least significant). If the magnitude is zero, return value is undefined.
      *
      * <p>Note: never used for a BigInteger with a magnitude of zero.
-     * @see #getInt.
+     * @see #getInt
      */
     private int firstNonzeroIntNum() {
         int fn = firstNonzeroIntNumPlusTwo - 2;