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# Code for Building Blocks Galore

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    package com.trolltech.examples.tutorial;

    import com.trolltech.qt.gui.*;
    import com.trolltech.qt.core.*;

    public class BlocksGalore extends QWidget
    {
        public BlocksGalore()
        {
            QPushButton quit = new QPushButton(tr("Quit"));
            quit.setFont(new QFont("Times", 18, QFont.Weight.Bold.value()));

            quit.clicked.connect(QApplication.instance(), "quit()");

            QGridLayout grid = new QGridLayout();
            QVBoxLayout layout = new QVBoxLayout();
            layout.addWidget(quit);
            layout.addLayout(grid);
            setLayout(layout);
            setWindowTitle(tr("Building Blocks Galore"));

            for (int row = 0; row < 3; ++row) {
                for (int column = 0; column < 3; ++column) {
                    LCDRange lcdRange = new LCDRange();
                    grid.addWidget(lcdRange, row, column);
                }
            }
        }

        class LCDRange extends QWidget
        {
            public LCDRange()
            {
                QLCDNumber lcd = new QLCDNumber(2);
                lcd.setSegmentStyle(QLCDNumber.SegmentStyle.Filled);

                QSlider slider = new QSlider(Qt.Orientation.Horizontal);
                slider.setRange(0, 99);
                slider.setValue(0);

                slider.valueChanged.connect(lcd, "display(int)");

                QVBoxLayout layout = new QVBoxLayout();
                layout.addWidget(lcd);
                layout.addWidget(slider);
                setLayout(layout);
            }
        }

        public static void main(String args[])
        {
            QApplication.initialize(args);

            BlocksGalore widget = new BlocksGalore();
            widget.show();

            QApplication.exec();
        }
    }