Pad string. (#5669)

java-strings/src/main/java/com/baeldung/string/padding/StringPaddingUtil.java

@@ -0,0 +1,34 @@
+package com.baeldung.string.padding;
+
+public class StringPaddingUtil {
+
+    public static String padLeftSpaces(String inputString, int length) {
+        if (inputString.length() >= length) {
+            return inputString;
+        }
+        StringBuilder sb = new StringBuilder();
+        while (sb.length() < length - inputString.length()) {
+            sb.append(' ');
+        }
+        sb.append(inputString);
+
+        return sb.toString();
+    }
+
+    public static String padLeft(String inputString, int length) {
+        if (inputString.length() >= length) {
+            return inputString;
+        }
+        StringBuilder sb = new StringBuilder();
+        for (int i = 0; i < length; i++) {
+            sb.append(' ');
+        }
+        return sb.substring(inputString.length()) + inputString;
+    }
+
+    public static String padLeftZeros(String inputString, int length) {
+        return String
+          .format("%1$" + length + "s", inputString)
+          .replace(' ', '0');
+    }
+}