Java I';我正在尝试将我的2D数组移动到GridBagLayout中
我正在做一个简单的游戏,这个2D阵列就是地图,可以作为一个杀手锏。我希望职位级别[0][0]处于网格位置(0,0),级别[1][0]处于(0,1),以此类推。但是,我不能让它工作,我不明白为什么不能Java I';我正在尝试将我的2D数组移动到GridBagLayout中,java,multidimensional-array,jframe,gridbaglayout,Java,Multidimensional Array,Jframe,Gridbaglayout,我正在做一个简单的游戏,这个2D阵列就是地图,可以作为一个杀手锏。我希望职位级别[0][0]处于网格位置(0,0),级别[1][0]处于(0,1),以此类推。但是,我不能让它工作,我不明白为什么不能 import java.awt.EventQueue; import javax.swing.JFrame; import javax.swing.JLabel; import java.awt.GridBagLayout; import java.awt.GridBagConstraints;
import java.awt.EventQueue;
import javax.swing.JFrame;
import javax.swing.JLabel;
import java.awt.GridBagLayout;
import java.awt.GridBagConstraints;
public class TestSnaken {
private JFrame frame;
/**
* Launch the application.
*/
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
TestSnaken window = new TestSnaken();
window.frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
/**
* Create the application.
*/
public TestSnaken() {
initialize();
}
/**
* Initialize the contents of the frame.
*/
private void initialize() {
frame = new JFrame();
frame.setBounds(100, 100, 1024, 768);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
GridBagLayout gridBagLayout = new GridBagLayout();
gridBagLayout.columnWidths = new int[]{0, 0};
gridBagLayout.rowHeights = new int[]{0, 0};
gridBagLayout.columnWeights = new double[]{0.0, Double.MIN_VALUE};
gridBagLayout.rowWeights = new double[]{0.0, Double.MIN_VALUE};
frame.getContentPane().setLayout(gridBagLayout);
GridBagConstraints grid = new GridBagConstraints();
int[][] level1 = {
{1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1},
{1,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1},
{1,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1},
{1,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1},
{1,0,0,0,1,0,0,0,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,0,0,0,0,0,1},
{1,0,0,0,1,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,1},
{1,0,0,0,1,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,1},
{1,0,0,0,1,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,1},
{1,0,0,0,1,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,1},
{1,0,0,0,1,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,1},
{1,0,0,0,1,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,1},
{1,0,0,0,1,0,0,0,0,1,1,1,1,1,1,1,1,1,1,0,0,0,0,0,1,0,0,0,0,0,0,1},
{1,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,1,0,0,0,0,0,0,1},
{1,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,1,0,0,0,0,0,0,1},
{1,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,1,0,0,0,0,0,0,1},
{1,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,1,0,0,0,0,0,0,1},
{1,0,0,0,1,1,1,1,1,1,1,1,1,1,0,0,0,0,1,0,0,0,0,0,1,0,0,0,0,0,0,1},
{1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,1,0,0,0,0,0,0,1},
{1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,1,0,0,0,0,0,0,1},
{1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,1,0,0,0,0,0,0,1},
{1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,1,0,0,0,0,0,0,1},
{1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,0,0,0,0,1,0,0,0,0,0,0,1},
{1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1},
{1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1},
{1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1},
{1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1},
{1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1},
{1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1},
{1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1}
};
//Here I'm trying to move the 2D-array into the GridBagLayout
JLabel label;
int i = 0;
int j = 0;
for (int[] arr: level1) {
grid.gridy = i;
for (int elem: arr) {
if(elem == 1){
label = new JLabel("x");
}
else {
label = new JLabel(" ");
}
grid.gridx = j;
frame.getContentPane().add(label, grid);
j++;
}
i++;
}
}
}
保留gridBayLayout参数。我认为你用错了。在每次运行第二个for循环之前,将j变量重置为0
private void initialize() {
[...]
GridBagLayout gridBagLayout = new GridBagLayout();
//gridBagLayout.columnWidths = new int[]{0, 0};
//gridBagLayout.rowHeights = new int[]{0, 0};
//gridBagLayout.columnWeights = new double[]{0.0, Double.MIN_VALUE};
//gridBagLayout.rowWeights = new double[]{0.0, Double.MIN_VALUE};
[...]
JLabel label;
int i = 0;
int j = 0;
for (int[] arr: level1) {
grid.gridy = i;
j = 0; // !!!!!!!!!!!!!!!
for (int elem: arr) {
if(elem == 1){
label = new JLabel("x");
}
else {
label = new JLabel(" ");
}
grid.gridx = j;
frame.getContentPane().add(label, grid);
j++;
}
i++;
}
}
然后它对我起作用了。正如您所注意到的,迭代的方式很容易出错。一个简单的
for
循环将更清晰:
for (int i = 0; i < level1.length; i++) {
for (int j = 0; j < level1[0].length; j++) {
grid.gridy = i;
grid.gridx = j;
if (level1[i][j] == 1) {
label = new JLabel("x");
}
else {
label = new JLabel(" ");
}
frame.getContentPane().add(label, grid);
}
}
for(int i=0;i
此外,设置列宽、行宽和高度的行在代码中没有任何作用
以下是使用frame.pack()
之后的内容setBounds
有一个问题,就是不知道要在什么屏幕大小上运行代码
请表示此问题已解决。这样做还可以获得2点声誉积分。