src/java.base/share/classes/java/text/CompactNumberFormat.java

rev 52979 : 8215281: Use String.isEmpty() when applicable in java.base
Reviewed-by: TBD

@@ -797,11 +797,11 @@
      * @param positions a list of {@code FieldPostion} in the given
      *                  string
      */
     private void append(StringBuffer result, String string,
             FieldDelegate delegate, List<FieldPosition> positions) {
-        if (string.length() > 0) {
+        if (!string.isEmpty()) {
             int start = result.length();
             result.append(string);
             for (int counter = 0; counter < positions.size(); counter++) {
                 FieldPosition fp = positions.get(counter);
                 Format.Field attribute = fp.getFieldAttribute();

@@ -1211,11 +1211,11 @@
                 negativePrefix = "'-" + positivePrefix;
             }
         }
 
         // If no 0s are specified in a non empty pattern, it is invalid
-        if (pattern.length() != 0 && zeros.isEmpty()) {
+        if (!pattern.isEmpty() && zeros.isEmpty()) {
             throw new IllegalArgumentException("Invalid pattern"
                     + " [" + pattern + "]: all patterns must include digit"
                     + " placement 0s");
         }