add foo to JFrame

TestFrame2/src/TestPackage2/FooClass.java

@@ -0,0 +1,13 @@
+/*
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java to edit this template
+ */
+package TestPackage2;
+
+/**
+ *
+ * @author Андрей
+ */
+public class FooClass {
+    public int foo;
+}

TestFrame2/src/TestPackage2/TestJForm2.form

@@ -23,13 +23,28 @@
   <Layout>
     <DimensionLayout dim="0">
       <Group type="103" groupAlignment="0" attributes="0">
-          <EmptySpace min="0" pref="400" max="32767" attributes="0"/>
+          <Group type="102" alignment="0" attributes="0">
+              <EmptySpace min="-2" pref="229" max="-2" attributes="0"/>
+              <Component id="jButton1" min="-2" max="-2" attributes="0"/>
+              <EmptySpace pref="233" max="32767" attributes="0"/>
+          </Group>
       </Group>
     </DimensionLayout>
     <DimensionLayout dim="1">
       <Group type="103" groupAlignment="0" attributes="0">
-          <EmptySpace min="0" pref="300" max="32767" attributes="0"/>
+          <Group type="102" alignment="0" attributes="0">
+              <EmptySpace min="-2" pref="172" max="-2" attributes="0"/>
+              <Component id="jButton1" min="-2" max="-2" attributes="0"/>
+              <EmptySpace pref="189" max="32767" attributes="0"/>
+          </Group>
       </Group>
     </DimensionLayout>
   </Layout>
+  <SubComponents>
+    <Component class="javax.swing.JButton" name="jButton1">
+      <Properties>
+        <Property name="text" type="java.lang.String" value="jButton1"/>
+      </Properties>
+    </Component>
+  </SubComponents>
 </Form>

TestFrame2/src/TestPackage2/TestJForm2.java

@@ -16,6 +16,7 @@ public class TestJForm2 extends javax.swing.JFrame {
     public TestJForm2() {
         initComponents();
     }
+    public String foo;
 
     /**
      * This method is called from within the constructor to initialize the form.
@@ -26,17 +27,27 @@ public class TestJForm2 extends javax.swing.JFrame {
     // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
     private void initComponents() {
 
+        jButton1 = new javax.swing.JButton();
+
         setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
 
+        jButton1.setText("jButton1");
+
         javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
         getContentPane().setLayout(layout);
         layout.setHorizontalGroup(
             layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
-            .addGap(0, 400, Short.MAX_VALUE)
+            .addGroup(layout.createSequentialGroup()
+                .addGap(229, 229, 229)
+                .addComponent(jButton1)
+                .addContainerGap(233, Short.MAX_VALUE))
         );
         layout.setVerticalGroup(
             layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
-            .addGap(0, 300, Short.MAX_VALUE)
+            .addGroup(layout.createSequentialGroup()
+                .addGap(172, 172, 172)
+                .addComponent(jButton1)
+                .addContainerGap(189, Short.MAX_VALUE))
         );
 
         pack();
@@ -78,5 +89,6 @@ public class TestJForm2 extends javax.swing.JFrame {
     }
 
     // Variables declaration - do not modify//GEN-BEGIN:variables
+    private javax.swing.JButton jButton1;
     // End of variables declaration//GEN-END:variables
 }