Here you can find the source of drawString(Graphics2D g, String s, int x, int y, int width)
public static void drawString(Graphics2D g, String s, int x, int y, int width)
//package com.java2s; /*/* w w w. j a va2s . c om*/ * * Copyright SHMsoft, Inc. * * 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. */ import java.awt.FontMetrics; import java.awt.Graphics2D; public class Main { public static void drawString(Graphics2D g, String s, int x, int y, int width) { // FontMetrics gives us information about the width, // height, etc. of the current Graphics object's Font. FontMetrics fm = g.getFontMetrics(); int lineHeight = fm.getHeight(); int curX = x; int curY = y; String[] words = s.split(" "); for (String word : words) { // Find out thw width of the word. int wordWidth = fm.stringWidth(word + " "); // If text exceeds the width, then move to next line. if (curX + wordWidth >= x + width) { curY += lineHeight; curX = x; } g.drawString(word, curX, curY); // Move over to the right for next word. curX += wordWidth; } } }