Here you can find the source of ltrim(final String text)
public static final String ltrim(final String text)
//package com.java2s; /*/*from w w w .j a v a 2 s.co m*/ * Copyright 2015-2016 the original author or authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, * either express or implied. See the License for the specific language * governing permissions and limitations under the License. */ public class Main { public static final String ltrim(final String text) { return ltrim(text, null); } public static final String ltrim(final String text, String trimText) { if (text == null) { return null; } if (trimText == null) { trimText = " "; } int pos = 0; for (; pos < text.length(); pos++) { if (trimText.indexOf(text.charAt(pos)) < 0) { break; } } return text.substring(pos); } }