每当我最小化JFrame时，一切都变黑了。 我也无法向面板添加JScrollPane。 我知道我做错了。 我搜索互联网，我很困惑。 请帮我解决这两个问题。 抱歉英语不好 这是我的代码，我只是粘贴我编写的GUI代码。
import javax.swing.*;
import java.awt.event.*;
import java.awt.*;
import java.io.*;
import java.util.StringTokenizer;
import java.util.Scanner;
class x1 extends JFrame // implements FocusListener
{
static x1 o1;
JLabel l1[];
int z = 0, i = 0, k = 0, l = 0, m = 0, n = 0, mm = 0, rr = 0, inc = 0;
static int x = 100, sum = 0, summ = 0;
String s[][], s1[][];
String s2 = "";
String base[] = new String[200];
String derived[] = new String[20];
JScrollPane scrollPane;
JPanel topPanel;
static int yy = 50;
String copy = new String("");
String xx[] = new String[1000];
int count = 0, j = 0, jj = 0, count1 = 0, count2 = 0, level = 1, r = 0, large = 0;
int size[] = new int[20];
x1(String aa[]) {
s = new String[100][3];
topPanel = new JPanel();
System.out.println("YYYYYYYYYYYYYYYY : " + yy);
topPanel.setSize(800, 800);
topPanel.setLayout(new BorderLayout());
scrollPane = new JScrollPane();
getContentPane().add(scrollPane, BorderLayout.CENTER);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
public void get(String ab[]) {
int i = 0;
System.out.println("THIS IS GET METHOD");
while (ab[i] != null) {
xx[i] = ab[i];
count++;
i++;
}
// yy=0;
}
public void paint(Graphics g) {
// Graphics2D g2 = (Graphics2D) g;
System.out.println("COUNT : " + count);
while (xx[j] != null) {
if ((xx[j].equals("class")) && (!xx[j + 2].equals("extends"))) {
if (count1 > 0) {
yy = yy - (20 * count1);
count1 = 0;
}
x = x + 300;
// g.setColor(Color.PINK);
g.drawRect(x, yy, 50, 20);
j++;
base[k] = xx[j];
k++;
s[z][0] = xx[j];
s[z][1] = String.valueOf(x + 10);
s[z][2] = String.valueOf(yy + 15);
// g.setColor(Color.BLACK);
g.drawString(String.valueOf(s[z][0]), Integer.parseInt(s[z][1]), Integer.parseInt(s[z][2]));
j = j + 2;
while (!xx[j].equals("-----")) {
if (xx[j].equals("(")) {
s2 = s2 + "(";
yy = yy + 20;
count1++;
size[r] = yy;
} else if ((xx[j].equals("void")) || (xx[j].equals("int")) || (xx[j].equals("char")) || (xx[j].equals("float")) || (xx[j].equals("double")) || (xx[j].equals("byte"))
|| (xx[j].equals("short")) || (xx[j].equals("long")) || (xx[j].equals("boolean")) || (xx[j].equals("String"))) {
s2 = s2 + xx[j] + " ";
} else if (xx[j].equals(")")) {
s2 = s2 + ")";
int n = s2.length();
g.drawRect(x, yy, 200, 20);
s[z][1] = String.valueOf(x + 10);
s[z][2] = String.valueOf(yy + 15);
g.drawString(s2, Integer.parseInt(s[z][1]), Integer.parseInt(s[z][2]));
s2 = "";// yy=yy+20;
} else {
s2 = s2 + xx[j];
}
j++;
// }
}
r++;
z++;
} // if of class and not extends
else if ((xx[j].equals("class")) && (xx[j + 2].equals("extends")))
{
derived[l] = xx[j + 1];
System.out.println("DERIVED : " + derived[l]);
l++;
}
rr = 0;
while (rr < r) {
if ((r == 1)) {
large = size[rr];
break;
}
/*
* if((size[rr+1])==null) {break;}
*/
if (size[rr] < size[rr + 1]) {
large = size[rr + 1];
}
rr++;
}
if (j == (count - 1)) {
derived[l] = "!";
x = 0;
while (base[x] != null) {
summ++;
x++;
}
break;
}
j++;
}
x = 100;
while (base[m] != null) {
mm = m;
yy = large + 50;
x = 400;
while (mm < summ) {
count1 = 0;
sum = 0;
jj = 0;
while (derived[jj] != "!") {
if (count1 > 0) {
yy = yy - (20 * count1);
count1 = 0;
}
if (derived[jj].equals("0")) {
} else {
n = 0;
while (xx[n] != null) {
if ((xx[n].equals("class")) && (xx[n + 1].equals(derived[jj]))) {
break;
} else
n++;
}
if (xx[n + 3].equals(base[mm])) {
copy = copy + derived[jj] + " ";
System.out.println("COPY :" + copy + " " + inc);
derived[jj] = "0";
/*
* if(mm>m) {sum=1;}
*/
x = 400;
for (int h = 0; h < inc; h++)
{
x = x + 300;
}
/*
* for(int h=0;h<sum;h++) {x=x+300;}
*/
// g.setColor(Color.PINK);
g.drawRect(x, yy, 50, 20);
s[z][0] = xx[n + 1];
s[z][1] = String.valueOf(x + 10);
s[z][2] = String.valueOf(yy + 15);
// g.setColor(Color.BLACK);
g.drawString(String.valueOf(s[z][0]), Integer.parseInt(s[z][1]), Integer.parseInt(s[z][2]));
z++;
inc++;
while (!xx[n].equals("functions")) {
n++;
}
n++;
while (!xx[n].equals("-----")) {
if (xx[n].equals("(")) {
s2 = s2 + "(";
yy = yy + 20;
count1++;
count2++;
size[r] = yy;
} else if ((xx[n].equals("void")) || (xx[n].equals("int")) || (xx[n].equals("char")) || (xx[n].equals("float")) || (xx[n].equals("double")) || (xx[n].equals("byte"))
|| (xx[n].equals("short")) || (xx[n].equals("long")) || (xx[n].equals("boolean")) || (xx[n].equals("String"))) {
s2 = s2 + xx[n] + " ";
} else if (xx[n].equals(")")) {
s2 = s2 + ")";
int n = s2.length();
g.drawRect(x, yy, 200, 20);
s[z][1] = String.valueOf(x + 10);
s[z][2] = String.valueOf(yy + 15);
g.drawString(s2, Integer.parseInt(s[z][1]), Integer.parseInt(s[z][2]));
z++;
s2 = "";// yy=yy+20;
} else {
s2 = s2 + xx[n];
}
n++;
} // while
r++;
z++;
} // if over
} // else
jj++;
}
rr = 0;
while (rr < r) {
if ((r == 1)) {
large = size[rr];
break;
}
/*
* if((size[rr+1])==null) {break;}
*/
if (size[rr] < size[rr + 1]) {
large = size[rr + 1];
}
rr++;
}
mm++;
}
inc = 0;
StringTokenizer st = new StringTokenizer(copy, " ");
while (st.hasMoreTokens()) {
base[k] = st.nextToken();
k++;
}
level++;
int b = summ;
while (base[b] != null) {
summ++;
b++;
}
m = mm - 1;
m++;
}
}
public static void main(String aa[]) {
o1 = new x1(aa);
o1.get(aa);
o1.setTitle("PROJECT FILE");
o1.setSize(1600, 900);
// o1.setResizable(false);
o1.setVisible(true);
// o1.pack();
// o1.setExtendedState(JFrame.MAXIMIZED_BOTH);
// o1.setUndecorated(true);
}
}
请忽略所有变量，数组。 最小化和JScrollpane是我的问题，逻辑正在工作但完全停电。