Java JPanel有时只显示组件
我和杰帕内尔有点问题。我对Swing和所有东西都是新手，所以有些可能是不正确的。任何帮助都将不胜感激。当调用battleGUISelection方法时，问题发生在第二个类中。有时会显示，但其他时候，如通过teachMove方法添加新移动后，它会显示为空白。JLabel将完全不可见，直到我将光标悬停在按钮上，按钮才会出现 这是我到目前为止所拥有的Java JPanel有时只显示组件,java,swing,jframe,jpanel,Java,Swing,Jframe,Jpanel,我和杰帕内尔有点问题。我对Swing和所有东西都是新手，所以有些可能是不正确的。任何帮助都将不胜感激。当调用battleGUISelection方法时，问题发生在第二个类中。有时会显示，但其他时候，如通过teachMove方法添加新移动后，它会显示为空白。JLabel将完全不可见，直到我将光标悬停在按钮上，按钮才会出现 这是我到目前为止所拥有的 import java.util.*; @SuppressWarnings("unchecked") public class Battle { p
import java.util.*;
@SuppressWarnings("unchecked")
public class Battle {
public int hp;
public String name;
public ArrayList<String> moves = new ArrayList<String>();
public ArrayList<Integer> damages = new ArrayList<Integer>();
public Battle(String name_in)
{
name = name_in;
moves.add("punch");
moves.add("kick");
moves.add("slam");
damages.add(10);
damages.add(15);
damages.add(20);
}
public void setHp(Battle player, int amt)
{
player.hp = amt;
}
public void revive(Battle player, String difficulty_in)
{
if(difficulty_in.equals("beginner"))
{
player.hp = 50;
}
else if(difficulty_in.equals("intermediate"))
{
player.hp = 75;
}
else if(difficulty_in.equals("expert"))
{
player.hp = 100;
}
}
}
import java.util.*；
@抑制警告（“未选中”）
公开阶级斗争{
公共int hp；
公共字符串名称；
public ArrayList moves=new ArrayList（）；
公共ArrayList损害赔偿=新ArrayList（）；
公共战斗（字符串名称_in）
{
name=name_in；
移动。添加（“冲压”）；
移动。添加（“踢”）；
移动。添加（“猛击”）；
增加第（10）款；
增加（15）；
增加（20）；
}
公共无效setHp（战斗玩家，智力值）
{
player.hp=amt；
}
公共虚空复活（战斗玩家，弦乐难度）
{
如果（难度等于（“初学者”））
{
player.hp=50；
}
否则如果（难度等于（“中间”））
{
player.hp=75；
}
否则（难度等于（“专家”））
{
player.hp=100；
}
}
}
import java.awt.*;
import java.util.*;
import java.awt.event.*;
import javax.swing.*;
public class GUIFrameTest extends JFrame {
JPanel panel = new JPanel();
JButton begButton = new JButton("Beginner");
JButton intermButton = new JButton("Intermediate");
JButton expertButton = new JButton("Expert");
JButton okButton = new JButton("OK");
JLabel title = new JLabel("SELECT DIFFICULTY");
JLabel label = new JLabel();
JLabel txtLabel = new JLabel();
TextField name = new TextField();
static Battle newPlayer = new Battle("");
static Battle enemyBeginner = new Battle("OPPONENT");
static Battle enemyIntermediate = new Battle("OPPONENT");
static Battle enemyExpert = new Battle("OPPONENT");
static Battle enemy;
static String difficulty;
public GUIFrameTest(String windowName)
{
super(windowName);
final Container c = getContentPane();
panel.setLayout(null);
//panel.setBounds(0, 0, 500, 500);
begButton.setBounds(0, 25, 100, 50);
intermButton.setBounds(125, 25, 110, 50);
expertButton.setBounds(255, 25, 100, 50);
label.setBounds(0, 100, 200, 50);
name.setBounds(188, 225, 125, 25);
txtLabel.setBounds(188, 178, 125, 50);
okButton.setBounds(200, 255, 100, 25);
title.setBounds(0, 0, 150, 15);
txtLabel.setText("Enter name of player: ");
begButton.addActionListener(new AbstractAction("add"){
@Override
public void actionPerformed(ActionEvent e){
label.setText("Difficulty set to beginner");
difficulty = "beginner";
newPlayer.setHp(newPlayer, 50);
enemyBeginner.setHp(enemyBeginner, 50);
enemyBeginner.moves.add("punch");
enemyBeginner.moves.add("kick");
enemyBeginner.damages.add(10);
enemyBeginner.damages.add(10);
enemy = enemyBeginner;
}
});
intermButton.addActionListener(new AbstractAction("add"){
@Override
public void actionPerformed(ActionEvent e){
label.setText("Difficulty set to intermediate");
difficulty = "intermediate";
newPlayer.setHp(newPlayer, 75);
enemyIntermediate.setHp(enemyIntermediate, 75);
enemyIntermediate.moves.add("punch");
enemyIntermediate.moves.add("kick");
enemyIntermediate.moves.add("slam");
enemyIntermediate.damages.add(20);
enemyIntermediate.damages.add(15);
enemyIntermediate.damages.add(25);
enemy = enemyIntermediate;
}
});
expertButton.addActionListener(new AbstractAction("add"){
@Override
public void actionPerformed(ActionEvent e){
label.setText("Difficulty set to expert");
difficulty = "expert";
newPlayer.setHp(newPlayer, 100);
enemyExpert.setHp(enemyExpert, 100);
enemyExpert.moves.add("super punch");
enemyExpert.moves.add("smash");
enemyExpert.moves.add("jump kick");
enemyExpert.damages.add(20);
enemyExpert.damages.add(25);
enemyExpert.damages.add(30);
enemy = enemyExpert;
}
});
okButton.addActionListener(new AbstractAction("add"){
@Override
public void actionPerformed(ActionEvent e){
newPlayer.name = name.getText();
panel.removeAll();
panel.updateUI();
battleGUISelection(c);
}
});
panel.add(begButton);
panel.add(intermButton);
panel.add(expertButton);
panel.add(label);
panel.add(name);
panel.add(txtLabel);
panel.add(okButton);
panel.add(title);
panel.setBackground(Color.WHITE);
c.add(panel);
}
public static void battleGUISelection(final Container c)
{
int yCoord = 100;
final JPanel nextPanel = new JPanel();
JLabel title = new JLabel();
nextPanel.updateUI();
ArrayList<JLabel> moveLabelList = new ArrayList<JLabel>();
ArrayList<JLabel> damageLabelList = new ArrayList<JLabel>();
title.setText("Moves Known: ");
title.setBounds(200, 75, 100, 30);
nextPanel.setLayout(null);
JButton battleButton = new JButton("Battle");
JButton moveButton = new JButton("Teach Moves");
JButton healButton = new JButton("Heal");
battleButton.setBounds(0, 360, 500, 30);
moveButton.setBounds(0, 390, 500, 30);
healButton.setBounds(0, 420, 500, 30);
moveButton.addActionListener(new AbstractAction("add"){
@Override
public void actionPerformed(ActionEvent e){
nextPanel.removeAll();
nextPanel.updateUI();
teachMove(c, nextPanel);
}
});
nextPanel.add(battleButton);
nextPanel.add(moveButton);
nextPanel.add(healButton);
nextPanel.add(title);
for(int i=0; i<newPlayer.moves.size(); i++)
{
moveLabelList.add(new JLabel(newPlayer.moves.get(i).toString()));
moveLabelList.get(i).setBounds(185, yCoord, 100, 15);
yCoord=yCoord+25;
nextPanel.add(moveLabelList.get(i));
}
yCoord = 100;
for(int x=0; x<newPlayer.damages.size(); x++)
{
damageLabelList.add(new JLabel(newPlayer.damages.get(x).toString() + " damage"));
damageLabelList.get(x).setBounds(280, yCoord, 100, 15);
yCoord=yCoord+25;
nextPanel.add(damageLabelList.get(x));
}
nextPanel.setBackground(Color.WHITE);
//nextPanel.setVisible(true);
c.setVisible(true);
c.add(nextPanel);
}
public static void teachMove(final Container x, final JPanel newPanel)
{
final int confirmYOrN = 0;
final JTextField moveName = new JTextField();
final JSlider moveDamage = new JSlider(0, 30);
final JLabel confirm = new JLabel("Great! Your move has been added.");
JLabel entryLabel = new JLabel("Enter the new move's name: ");
JLabel damageEntryLabel = new JLabel("Enter the new move's damage: ");
JButton enterButton = new JButton("OK");
confirm.setBounds(160, 350, 200, 15);
enterButton.addActionListener(new AbstractAction("add"){
@Override
public void actionPerformed(ActionEvent e){
final String mName = moveName.getText();
final int mDam = moveDamage.getValue();
newPlayer.moves.add(mName);
newPlayer.damages.add(mDam);
newPanel.removeAll();
newPanel.updateUI();
battleGUISelection(x);
}
});
moveDamage.setMajorTickSpacing(10);
moveDamage.setMinorTickSpacing(5);
moveDamage.setPaintTicks(true);
moveDamage.setPaintLabels(true);
entryLabel.setBounds(160, 125, 175, 25);
damageEntryLabel.setBounds(160, 200, 200, 25);
moveName.setBounds(160, 155, 175, 25);
moveDamage.setBounds(160, 230, 175, 45);
enterButton.setBounds(225, 290, 60, 50);
newPanel.add(entryLabel);
newPanel.add(moveName);
newPanel.add(damageEntryLabel);
newPanel.add(moveDamage);
newPanel.add(enterButton);
x.add(newPanel);
x.setVisible(true);
}
public static void main(String[] args)
{
GUIFrameTest window = new GUIFrameTest("BattleGUI");
//Window properties
window.setBounds(300, 300, 500, 500);
window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
window.setVisible(true);
}
}
import java.awt.*；
导入java.util.*；
导入java.awt.event.*；
导入javax.swing.*；
公共类GUIFrameTest扩展了JFrame{
JPanel面板=新的JPanel（）；
JButton begButton=新JButton（“初学者”）；
JButton intermButton=新JButton（“中间”）；
JButton expertButton=新JButton（“专家”）；
JButton-okButton=新JButton（“OK”）；
JLabel title=新JLabel（“选择难度”）；
JLabel标签=新的JLabel（）；
JLabel txtLabel=新的JLabel（）；
TextField name=新的TextField（）；
静态战斗newPlayer=新战斗（“”）；
静态战斗敌人初学者=新战斗（“对手”）；
静态战斗enemyIntermediate=新战斗（“对手”）；
静态战斗enemyExpert=新战斗（“对手”）；
静态对抗敌人；
静态串难度；
公共GUI框架测试（字符串windowName）
{
超级（窗口名）；
最终容器c=getContentPane（）；
panel.setLayout（空）；
//面板立根（0,0,500,500）；
begButton.setBounds（0,25,100,50）；
立根（125,25,110,50）；
expertButton.setBounds（255,25,100,50）；
标签.立根（0，100，200，50）；
名称.立根（188、225、125、25）；
txtlab.setBounds（18817812550）；
okButton.setBounds（2002551025）；
标题.立根（0,0,150,15）；
setText（“输入玩家名称：”）；
begButton.addActionListener（新的AbstractAction（“添加”）{
@凌驾
已执行的公共无效操作（操作事件e）{
label.setText（“难度设置为初学者”）；
难度=“初学者”；
setHp（newPlayer，50）；
灌肠初学者。setHp（灌肠初学者，50）；
Enemy初学者。移动。添加（“冲压”）；
Enemy初学者。移动。添加（“踢”）；
Enemy初学者。伤害。增加（10）；
Enemy初学者。伤害。增加（10）；
敌人=敌人的初学者；
}
});
intermButton.addActionListener（新的AbstractAction（“添加”）{
@凌驾
已执行的公共无效操作（操作事件e）{
label.setText（“难度设置为中级”）；
难度=“中级”；
setHp（newPlayer，75岁）；
setHp（enemyIntermediate，75）；
enemyIntermediate.moves.add（“punch”）；
enemyIntermediate.moves.add（“kick”）；
enemyIntermediate.moves.add（“slam”）；
enemyIntermediate.损害赔偿。添加（20）；
enemyIntermediate.损害赔偿。添加（15）；
enemyIntermediate.损害赔偿。添加（25）；
敌人=敌人；
}
});
addActionListener（新的AbstractAction（“添加”）{
@凌驾
已执行的公共无效操作（操作事件e）{
label.setText（“难度设置为专家”）；
难度=“专家”；
setHp（newPlayer，100）；
enemyExpert.setHp（enemyExpert，100）；
enemyExpert.moves.add（“超级冲孔”）；
enemyExpert.moves.add（“粉碎”）；
enemyExpert.moves.add（“跳踢”）；
enemyExpert.损害赔偿增加（20）；
enemyExpert.损害赔偿增加（25）；
enemyExpert.损害赔偿增加（30）；
敌人=专家；
}
});
okButton.addActionListener（新的AbstractAction（“添加”）{
@凌驾
已执行的公共无效操作（操作事件e）{
newPlayer.name=name.getText（）；
panel.removeAll（）；
panel.updateUI（）；
选择（c）；
}
});
面板。添加（begButton）；
面板。添加（按钮）；
面板。添加（专家按钮）；
面板。添加（标签）；
面板。添加（名称）；
面板。添加（txtlab）；
面板。添加（确定按钮）；
小组.添加（标题）；
面板.立根背景（颜色.白色）；
c、 添加（面板）；
}
公共静态选择（最终容器c）
{
int yCoord=100；
final JPanel nextPanel=新JPanel（）；
JLabel title=新的JLabel（）；
nextPanel.updateUI（）；
ArrayList moveLabelList=新的ArrayList（）；
ArrayList damageLabelList=新的ArrayList（）；
title.setText（“已知移动：”）；
标题.立根（200,75,100,30）；
nextPanel.setLayout（空）；
JButton battleButton=新JButton（“战斗”）；
JButton moveButton=新JButton（“示教动作”）；
JButton healButton=新JButton（“Heal”）；
战斗按钮。后退（0，360，500，30）；
移动按钮。立根（0390500,30）；
综钮.立根（0，420，500，30）；
addActionListener（新的AbstractAction（“添加”）{
@凌驾
已执行的公共无效操作（操作事件e）{
nextPanel.removeAll（）；
nextPanel.upda
nextPanel.setLayout(null);
public class GUICompoundLayout extends JFrame {
JPanel panel = new JPanel();
JButton begButton = new JButton("Beginner");
JButton intermButton = new JButton("Intermediate");
JButton expertButton = new JButton("Expert");
JButton okButton = new JButton("OK");
JLabel title = new JLabel("SELECT DIFFICULTY");
JLabel label = new JLabel();
JLabel txtLabel = new JLabel();
TextField name = new TextField(10);
static Battle newPlayer = new Battle("");
static Battle enemyBeginner = new Battle("OPPONENT");
static Battle enemyIntermediate = new Battle("OPPONENT");
static Battle enemyExpert = new Battle("OPPONENT");
static Battle enemy;
static String difficulty;
public GUICompoundLayout(String windowName) {
super(windowName);
JPanel pnlTop = new JPanel(new FlowLayout(FlowLayout.LEFT));
JPanel pnlMiddle = new JPanel(new FlowLayout(FlowLayout.LEFT));
JPanel pnlBody = new JPanel(new GridBagLayout());
pnlTop.setBackground(Color.WHITE);
pnlMiddle.setBackground(Color.WHITE);
pnlBody.setBackground(Color.WHITE);
pnlTop.add(title);
pnlMiddle.add(begButton);
pnlMiddle.add(intermButton);
pnlMiddle.add(expertButton);
txtLabel.setText("Enter name of player: ");
GridBagConstraints gbc = new GridBagConstraints();
gbc.gridx = 0;
gbc.gridy = 0;
gbc.insets = new Insets(2, 2, 2, 2);
pnlBody.add(txtLabel, gbc);
gbc.gridy++;
pnlBody.add(name, gbc);
gbc.gridy++;
pnlBody.add(okButton, gbc);
setLayout(new GridBagLayout());
gbc = new GridBagConstraints();
gbc.weightx = 1;
gbc.fill = GridBagConstraints.HORIZONTAL;
gbc.gridx = 0;
gbc.gridy = 0;
add(pnlTop, gbc);
gbc.gridy++;
add(pnlMiddle, gbc);
gbc.gridy++;
gbc.weightx = 1;
gbc.weighty = 1;
gbc.fill = GridBagConstraints.BOTH;
add(pnlBody, gbc);
// begButton.setBounds(0, 25, 100, 50);
// intermButton.setBounds(125, 25, 110, 50);
// expertButton.setBounds(255, 25, 100, 50);
// label.setBounds(0, 100, 200, 50);
// name.setBounds(188, 225, 125, 25);
// txtLabel.setBounds(188, 178, 125, 50);
// okButton.setBounds(200, 255, 100, 25);
// title.setBounds(0, 0, 150, 15);
//
// txtLabel.setText("Enter name of player: ");
begButton.addActionListener(new AbstractAction("add") {
@Override
public void actionPerformed(ActionEvent e) {
label.setText("Difficulty set to beginner");
difficulty = "beginner";
newPlayer.setHp(newPlayer, 50);
enemyBeginner.setHp(enemyBeginner, 50);
enemyBeginner.moves.add("punch");
enemyBeginner.moves.add("kick");
enemyBeginner.damages.add(10);
enemyBeginner.damages.add(10);
enemy = enemyBeginner;
}
});
intermButton.addActionListener(new AbstractAction("add") {
@Override
public void actionPerformed(ActionEvent e) {
label.setText("Difficulty set to intermediate");
difficulty = "intermediate";
newPlayer.setHp(newPlayer, 75);
enemyIntermediate.setHp(enemyIntermediate, 75);
enemyIntermediate.moves.add("punch");
enemyIntermediate.moves.add("kick");
enemyIntermediate.moves.add("slam");
enemyIntermediate.damages.add(20);
enemyIntermediate.damages.add(15);
enemyIntermediate.damages.add(25);
enemy = enemyIntermediate;
}
});
expertButton.addActionListener(new AbstractAction("add") {
@Override
public void actionPerformed(ActionEvent e) {
label.setText("Difficulty set to expert");
difficulty = "expert";
newPlayer.setHp(newPlayer, 100);
enemyExpert.setHp(enemyExpert, 100);
enemyExpert.moves.add("super punch");
enemyExpert.moves.add("smash");
enemyExpert.moves.add("jump kick");
enemyExpert.damages.add(20);
enemyExpert.damages.add(25);
enemyExpert.damages.add(30);
enemy = enemyExpert;
}
});
okButton.addActionListener(new AbstractAction("add") {
@Override
public void actionPerformed(ActionEvent e) {
newPlayer.name = name.getText();
panel.removeAll();
panel.updateUI();
battleGUISelection(getContentPane());
}
});
// panel.add(begButton);
// panel.add(intermButton);
// panel.add(expertButton);
// panel.add(label);
// panel.add(name);
// panel.add(txtLabel);
// panel.add(okButton);
// panel.add(title);
// panel.setBackground(Color.WHITE);
// c.add(panel);
}
public static void battleGUISelection(final Container c) {
int yCoord = 100;
final JPanel nextPanel = new JPanel();
JLabel title = new JLabel();
nextPanel.updateUI();
ArrayList<JLabel> moveLabelList = new ArrayList<JLabel>();
ArrayList<JLabel> damageLabelList = new ArrayList<JLabel>();
title.setText("Moves Known: ");
title.setBounds(200, 75, 100, 30);
nextPanel.setLayout(null);
JButton battleButton = new JButton("Battle");
JButton moveButton = new JButton("Teach Moves");
JButton healButton = new JButton("Heal");
battleButton.setBounds(0, 360, 500, 30);
moveButton.setBounds(0, 390, 500, 30);
healButton.setBounds(0, 420, 500, 30);
moveButton.addActionListener(new AbstractAction("add") {
@Override
public void actionPerformed(ActionEvent e) {
nextPanel.removeAll();
nextPanel.updateUI();
teachMove(c, nextPanel);
}
});
nextPanel.add(battleButton);
nextPanel.add(moveButton);
nextPanel.add(healButton);
nextPanel.add(title);
for (int i = 0; i < newPlayer.moves.size(); i++) {
moveLabelList.add(new JLabel(newPlayer.moves.get(i).toString()));
moveLabelList.get(i).setBounds(185, yCoord, 100, 15);
yCoord = yCoord + 25;
nextPanel.add(moveLabelList.get(i));
}
yCoord = 100;
for (int x = 0; x < newPlayer.damages.size(); x++) {
damageLabelList.add(new JLabel(newPlayer.damages.get(x).toString() + " damage"));
damageLabelList.get(x).setBounds(280, yCoord, 100, 15);
yCoord = yCoord + 25;
nextPanel.add(damageLabelList.get(x));
}
nextPanel.setBackground(Color.WHITE);
//nextPanel.setVisible(true);
c.setVisible(true);
c.add(nextPanel);
}
public static void teachMove(final Container x, final JPanel newPanel) {
final int confirmYOrN = 0;
final JTextField moveName = new JTextField();
final JSlider moveDamage = new JSlider(0, 30);
final JLabel confirm = new JLabel("Great! Your move has been added.");
JLabel entryLabel = new JLabel("Enter the new move's name: ");
JLabel damageEntryLabel = new JLabel("Enter the new move's damage: ");
JButton enterButton = new JButton("OK");
confirm.setBounds(160, 350, 200, 15);
enterButton.addActionListener(new AbstractAction("add") {
@Override
public void actionPerformed(ActionEvent e) {
final String mName = moveName.getText();
final int mDam = moveDamage.getValue();
newPlayer.moves.add(mName);
newPlayer.damages.add(mDam);
newPanel.removeAll();
newPanel.updateUI();
battleGUISelection(x);
}
});
moveDamage.setMajorTickSpacing(10);
moveDamage.setMinorTickSpacing(5);
moveDamage.setPaintTicks(true);
moveDamage.setPaintLabels(true);
entryLabel.setBounds(160, 125, 175, 25);
damageEntryLabel.setBounds(160, 200, 200, 25);
moveName.setBounds(160, 155, 175, 25);
moveDamage.setBounds(160, 230, 175, 45);
enterButton.setBounds(225, 290, 60, 50);
newPanel.add(entryLabel);
newPanel.add(moveName);
newPanel.add(damageEntryLabel);
newPanel.add(moveDamage);
newPanel.add(enterButton);
x.add(newPanel);
x.setVisible(true);
}
public static void main(String[] args) {
GUICompoundLayout window = new GUICompoundLayout("BattleGUI");
//Window properties
window.setBounds(300, 300, 500, 500);
window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
window.setVisible(true);
}
}