我目前正在编写一个需要用户在框架内输入的程序。有没有一种简单的方法来设置输入文本字段的位置(在 X 和 Y 坐标中)？ JTextField 的构造函数和修改器方法似乎无法执行此操作。
这是代码:
import java.awt.image.*;
import java.io.*;
import java.util.*;
import java.awt.*;
import java.awt.event.*;
import java.awt.geom.*;
import java.net.*;
class labMain extends Frame implements KeyListener, MouseListener, MouseMotionListener {
String screenState;
Color bfi = new Color(155, 48, 255);
Color bfh = new Color(155, 48, 255, 200);
Color bfs = new Color(155, 48, 255, 200);
Color bbi = new Color(255, 255, 255);
Color bbh = new Color(5, 12, 15);
Color bbs = new Color(220, 20, 60);
quadButton startSession, gotoUser, gotoInventory, gotoCalendar, gotoProcedures, gotoResults, gotoEmergencies;
quadButton addUsers, findUsers;
int mouseX, mouseY;
javax.swing.Timer mainT;
BufferedImage imageBuffer;
Graphics2D graphicsBuffer;
boolean[] keys = new boolean[525];
public labMain() {
setTitle("uwDNA Lab Pro");
setSize(new Dimension(1365, 765));
this.addWindowListener (
new WindowAdapter() {
public void windowClosing(WindowEvent e) {
labMain.this.windowClosed();
}
}
);
setFocusable(true);
addKeyListener(this);
addMouseListener(this);
addMouseMotionListener(this);
}
protected void windowClosed() { System.exit(0); }
public void runLab() throws IOException {
imageBuffer = (BufferedImage) createImage(getWidth(), getHeight());
graphicsBuffer = (Graphics2D) imageBuffer.getGraphics();
screenState = "Main";
mainScreenInit();
usersScreenInit();
addUsersScreenInit();
ActionListener mainS = new ActionListener() {
public void actionPerformed(ActionEvent evt) {
detectMouseHover();
paint(getGraphics());
}
};
mainT = new javax.swing.Timer(1, mainS);
mainT.start();
}
public void detectMouseHover() {
if (startSession.intersects(mouseX, mouseY)) {
startSession.setState(aButton.isHover);
}
else {
startSession.setState(aButton.isIdle);
}
if (gotoUser.intersects(mouseX, mouseY)) {
gotoUser.setState(aButton.isHover);
}
else {
gotoUser.setState(aButton.isIdle);
}
if (gotoInventory.intersects(mouseX, mouseY)) {
gotoInventory.setState(aButton.isHover);
}
else {
gotoInventory.setState(aButton.isIdle);
}
if (gotoCalendar.intersects(mouseX, mouseY)) {
gotoCalendar.setState(aButton.isHover);
}
else {
gotoCalendar.setState(aButton.isIdle);
}
if (gotoProcedures.intersects(mouseX, mouseY)) {
gotoProcedures.setState(aButton.isHover);
}
else {
gotoProcedures.setState(aButton.isIdle);
}
if (gotoResults.intersects(mouseX, mouseY)) {
gotoResults.setState(aButton.isHover);
}
else {
gotoResults.setState(aButton.isIdle);
}
if (gotoEmergencies.intersects(mouseX, mouseY)) {
gotoEmergencies.setState(aButton.isHover);
}
else {
gotoEmergencies.setState(aButton.isIdle);
}
if (addUsers.intersects(mouseX, mouseY)) {
addUsers.setState(aButton.isHover);
}
else {
addUsers.setState(aButton.isIdle);
}
if (findUsers.intersects(mouseX, mouseY)) {
findUsers.setState(aButton.isHover);
}
else {
findUsers.setState(aButton.isIdle);
}
}
public void mainScreenInit() {
startSession = new quadButton(getWidth() / 2, getHeight() / 2, 400, 200, 10, Font.BOLD, 40, "Start Lab Session", "Arial", bfi, bfh, bfs, bbi, bbh, bbs);
int bbWidth = 200;
int bbHeight = bbWidth / 2;
int bbFontStyle = Font.PLAIN;
int bbFontSize = 20;
int bbBorderWidth = 5;
String bbFontName = "Arial";
gotoUser = new quadButton(((getWidth() - bbWidth * 6) / 7) * 1 + (bbWidth / 2 * 1), (getHeight() * 3 / 4) + 20, bbWidth, bbHeight, bbBorderWidth, bbFontStyle, bbFontSize, "Users", bbFontName, bfi, bfh, bfs, bbi, bbh, bbs);
gotoInventory = new quadButton(((getWidth() - bbWidth * 6) / 7) * 2 + (bbWidth / 2 * 3), (getHeight() * 3 / 4) + 20, bbWidth, bbHeight, bbBorderWidth, bbFontStyle, bbFontSize, "Inventory", bbFontName, bfi, bfh, bfs, bbi, bbh, bbs);
gotoCalendar = new quadButton(((getWidth() - bbWidth * 6) / 7) * 3 + (bbWidth / 2 * 5), (getHeight() * 3 / 4) + 20, bbWidth, bbHeight, bbBorderWidth, bbFontStyle, bbFontSize, "Calendar", bbFontName, bfi, bfh, bfs, bbi, bbh, bbs);
gotoProcedures = new quadButton(((getWidth() - bbWidth * 6) / 7) * 4 + (bbWidth / 2 * 7), (getHeight() * 3 / 4) + 20, bbWidth, bbHeight, bbBorderWidth, bbFontStyle, bbFontSize, "Procedures", bbFontName, bfi, bfh, bfs, bbi, bbh, bbs);
gotoResults = new quadButton(((getWidth() - bbWidth * 6) / 7) * 5 + (bbWidth / 2 * 9), (getHeight() * 3 / 4) + 20, bbWidth, bbHeight, bbBorderWidth, bbFontStyle, bbFontSize, "Results", bbFontName, bfi, bfh, bfs, bbi, bbh, bbs);
gotoEmergencies = new quadButton(((getWidth() - bbWidth * 6) / 7) * 6 + (bbWidth / 2 * 11), (getHeight() * 3 / 4) + 20, bbWidth, bbHeight, bbBorderWidth, bbFontStyle, bbFontSize, "Emergencies", bbFontName, bfi, bfh, bfs, bbi, bbh, bbs);
}
public void usersScreenInit() {
int ubWidth = 400;
int ubHeight = ubWidth / 2;
int ubFontStyle = Font.BOLD;
int ubFontSize = 20;
int ubBorderWidth = 10;
String ubFontName = "Arial";
addUsers = new quadButton(((getWidth() - ubWidth * 2) / 3) * 1 + (ubWidth / 2 * 1), (getHeight() * 9 / 16) + 20, ubWidth, ubHeight, ubBorderWidth, ubFontStyle, ubFontSize, "Add Users", ubFontName, bfi, bfh, bfs, bbi, bbh, bbs);
findUsers = new quadButton(((getWidth() - ubWidth * 2) / 3) * 2 + (ubWidth / 2 * 3), (getHeight() * 9 / 16) + 20, ubWidth, ubHeight, ubBorderWidth, ubFontStyle, ubFontSize, "Find Users", ubFontName, bfi, bfh, bfs, bbi, bbh, bbs);
}
public void addUsersScreenInit() {
}
public void keyPressed(KeyEvent e) {
}
public void keyReleased(KeyEvent e) {
}
public void keyTyped(KeyEvent e) {}
public void mousePressed(MouseEvent e) {
}
public void mouseReleased(MouseEvent e) {
}
public void mouseEntered(MouseEvent e) {
}
public void mouseExited(MouseEvent e) {
}
public void mouseClicked(MouseEvent e) {
if (screenState == "Main") {
if (gotoUser.intersects(e.getX(), e.getY())) {
screenState = "Users";
}
}
if (screenState == "Users") {
if (addUsers.intersects(e.getX(), e.getY())) {
screenState = "addUsers";
}
}
}
public void mouseMoved(MouseEvent e) {
mouseX = e.getX();
mouseY = e.getY();
}
public void mouseDragged(MouseEvent e) {
}
public void paint(Graphics g) {
Graphics2D g2 = (Graphics2D) g;
Color bkgBlue = new Color(102, 170, 205);
graphicsBuffer.setColor(bkgBlue);
graphicsBuffer.fillRect(0, 0, getWidth(), getHeight());
setBackground(bkgBlue);
BufferedImage bkg;
if (screenState.equals("Main")) {
try {
graphicsBuffer.setColor(Color.white);
graphicsBuffer.fillRect((getWidth() / 2) - 455, (getHeight() / 2) - 355, 910, 175);
URL url = new URL("http://i.imgur.com/iLm99QZ.jpg?1?9353");
bkg = javax.imageio.ImageIO.read(url);
graphicsBuffer.drawImage(bkg, (getWidth() / 2) - 450, (getHeight() / 2) - 350, this);
}
catch (IOException e) { System.err.println(e); }
startSession.paint(graphicsBuffer);
gotoUser.paint(graphicsBuffer);
gotoInventory.paint(graphicsBuffer);
gotoCalendar.paint(graphicsBuffer);
gotoProcedures.paint(graphicsBuffer);
gotoResults.paint(graphicsBuffer);
gotoEmergencies.paint(graphicsBuffer);
}
if (screenState.equals("Users")) {
try {
graphicsBuffer.setColor(Color.white);
graphicsBuffer.fillRect((getWidth() / 2) - 455, (getHeight() / 2) - 355, 910, 175);
URL url = new URL("http://i.imgur.com/nUrYx7q.jpg?1");
bkg = javax.imageio.ImageIO.read(url);
graphicsBuffer.drawImage(bkg, (getWidth() / 2) - 450, (getHeight() / 2) - 350, this);
}
catch (IOException e) { System.err.println(e); }
addUsers.paint(graphicsBuffer);
findUsers.paint(graphicsBuffer);
}
if (screenState.equals("addUsers")) {
try {
graphicsBuffer.setColor(Color.white);
graphicsBuffer.fillRect((getWidth() / 2) - 455, (getHeight() / 2) - 355, 910, 175);
URL url = new URL("http://i.imgur.com/GDCTw65.jpg?1");
bkg = javax.imageio.ImageIO.read(url);
graphicsBuffer.drawImage(bkg, (getWidth() / 2) - 450, (getHeight() / 2) - 350, this);
}
catch (IOException e) { System.err.println(e); }
}
g2.drawImage(imageBuffer, 10, 25, getWidth(), getHeight(), this);
}
}
最佳答案
要设置位置，只需使用此代码
import java.awt.*;
import javax.swing.*;
class SetTextfield extends JFrame
{
JTextField t1,t2;
public SetTextfield()
{
t1=new JTextfield();
t2=new JTextField();
t1.setBounds(100,100,200,40);
t2.setBounds(180,100,200,40);
add(t1);
add(t2);
}
public static void main(String []args)
{
SetTextfield obj=new SetTextfield();
obj.setSize(500,500);
obj.setVisible(true);
obj.setResizable(false);
}
}
关于java - 在Java中设置文本字段的位置？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/24842068/