Here you can find the source of indent(int level)
public static String indent(int level)
//package com.java2s; /*/*from w ww. j a va 2 s .com*/ * Copyright (c) 2011, the Dart project authors. * * Licensed under the Eclipse Public License v1.0 (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.eclipse.org/legal/epl-v10.html * * 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 { private static final String INDENTS[] = new String[] { "", " ", " ", " " }; public static String indent(int level) { if (level < 0) { return ""; } else if (level < INDENTS.length) { return INDENTS[level]; } StringBuilder builder = new StringBuilder(); for (int i = 0; i < level; i++) { builder.append(" "); } return builder.toString(); } }