Question

java 中JSlider和Jspinner的使用

谁有JSlider和Jspinner的使用示例。给个连接或贴一点示例都可以，谢谢

Answer 1

import javax.swing.*; import java.awt.Color; import java.awt.Container; import java.util.Calendar; import java.util.Date; public class SpinnerDemo extends JPanel { public SpinnerDemo(boolean cycleMonths) { super(new SpringLayout()); String[] labels = {"Month: ", "Year: ", "Another Date: "}; int numPairs = labels.length; Calendar calendar = Calendar.getInstance(); JFormattedTextField ftf = null; //Add the first label-spinner pair. String[] monthStrings = getMonthStrings(); //get month names SpinnerListModel monthModel = null; if (cycleMonths) { //use custom model monthModel = new CyclingSpinnerListModel(monthStrings); } else { //use standard model monthModel = new SpinnerListModel(monthStrings); } JSpinner spinner = addLabeledSpinner(this, labels[0], monthModel); //Tweak the spinner's formatted text field. ftf = getTextField(spinner); if (ftf != null ) { ftf.setColumns(8); //specify more width than we need ftf.setHorizontalAlignment(JTextField.RIGHT); } //Add second label-spinner pair. int currentYear = calendar.get(Calendar.YEAR); SpinnerModel yearModel = new SpinnerNumberModel(currentYear, //initial value currentYear - 100, //min currentYear + 100, //max 1); //step //If we're cycling, hook this model up to the month model. if (monthModel instanceof CyclingSpinnerListModel) { ((CyclingSpinnerListModel)monthModel).setLinkedModel(yearModel); } spinner = addLabeledSpinner(this, labels[1], yearModel); //Make the year be formatted without a thousands separator. spinner.setEditor(new JSpinner.NumberEditor(spinner, "#")); //Add the third label-spinner pair. Date initDate = calendar.getTime(); calendar.add(Calendar.YEAR, -100); Date earliestDate = calendar.getTime(); calendar.add(Calendar.YEAR, 200); Date latestDate = calend