在JBuilder2005下运行
点中继续购买就出错 可是我找不到哪里出错阿 String s1;
int i = 0;
int i4[];
int v = 0;
public void jButton1_actionPerformed(ActionEvent e) { i++;
for (; i - 1 < i; i++) {
int i1 = Integer.parseInt(jTextField2.getText());
int i2 = Integer.parseInt(jTextField3.getText());
int i3 = i1 * i2;
i4[v] = i3; }
v++; jTextField1.setText("");//清空物品名称
jTextField2.setText("");//清空物品价格
jTextField3.setText("");//清空购买数量
} public void jButton2_actionPerformed(ActionEvent e) {
int yu = 0;
for (int t = 0; t < i4.length; t++) { yu = yu + i4[t]; }
s1 = Integer.toString(yu);
jLabel5.setText(s1);//输出购买物品总价格
}
点中继续购买就出错 可是我找不到哪里出错阿 String s1;
int i = 0;
int i4[];
int v = 0;
public void jButton1_actionPerformed(ActionEvent e) { i++;
for (; i - 1 < i; i++) {
int i1 = Integer.parseInt(jTextField2.getText());
int i2 = Integer.parseInt(jTextField3.getText());
int i3 = i1 * i2;
i4[v] = i3; }
v++; jTextField1.setText("");//清空物品名称
jTextField2.setText("");//清空物品价格
jTextField3.setText("");//清空购买数量
} public void jButton2_actionPerformed(ActionEvent e) {
int yu = 0;
for (int t = 0; t < i4.length; t++) { yu = yu + i4[t]; }
s1 = Integer.toString(yu);
jLabel5.setText(s1);//输出购买物品总价格
}
import java.awt.Dimension;import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTree;
import java.awt.*;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.JLabel;
import javax.swing.JTextField;
import javax.swing.JButton;
import javax.swing.*;
import javax.swing.event.TreeSelectionEvent;
import javax.swing.event.TreeSelectionListener;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.lang.*;/**
* <p>Title: </p>
*
* <p>Description: </p>
*
* <p>Copyright: Copyright (c) 2007</p>
*
* <p>Company: </p>
*
* @author not attributable
* @version 1.0
*/
public class Frame1 extends JFrame {
JPanel contentPane;
JTree jTree1;
JLabel jLabel1 = new JLabel();
JTextField jTextField1 = new JTextField();
JLabel jLabel2 = new JLabel();
JTextField jTextField2 = new JTextField();
JLabel jLabel3 = new JLabel();
JTextField jTextField3 = new JTextField();
JButton jButton1 = new JButton();
JButton jButton2 = new JButton();
JLabel jLabel4 = new JLabel();
JLabel jLabel5 = new JLabel(); public Frame1() {
try {
setDefaultCloseOperation(EXIT_ON_CLOSE);
jbInit();
} catch (Exception exception) {
exception.printStackTrace();
}
} /**
* Component initialization.
*
* @throws java.lang.Exception
*/
private void jbInit() throws Exception { contentPane = (JPanel) getContentPane();
contentPane.setLayout(null);
setSize(new Dimension(900, 800)); setTitle("Frame Title");
DefaultMutableTreeNode a = new DefaultMutableTreeNode("物美超市");
DefaultMutableTreeNode b = new DefaultMutableTreeNode("肉类");
DefaultMutableTreeNode c = new DefaultMutableTreeNode("蔬菜");
DefaultMutableTreeNode d = new DefaultMutableTreeNode("水果");
DefaultMutableTreeNode b1 = new DefaultMutableTreeNode("牛肉");
DefaultMutableTreeNode b11 = new DefaultMutableTreeNode("一等牛肉");
DefaultMutableTreeNode b12 = new DefaultMutableTreeNode("二等牛肉");
DefaultMutableTreeNode b13 = new DefaultMutableTreeNode("三等牛肉");
DefaultMutableTreeNode b2 = new DefaultMutableTreeNode("猪肉");
DefaultMutableTreeNode b21 = new DefaultMutableTreeNode("一等猪肉");
DefaultMutableTreeNode b22 = new DefaultMutableTreeNode("二等猪肉");
DefaultMutableTreeNode b23 = new DefaultMutableTreeNode("三等猪肉");
DefaultMutableTreeNode b3 = new DefaultMutableTreeNode("鱼肉");
DefaultMutableTreeNode b31 = new DefaultMutableTreeNode("一等鱼肉");
DefaultMutableTreeNode b32 = new DefaultMutableTreeNode("二等鱼肉");
DefaultMutableTreeNode b33 = new DefaultMutableTreeNode("三等鱼肉");
DefaultMutableTreeNode c1 = new DefaultMutableTreeNode("白菜");
DefaultMutableTreeNode c11 = new DefaultMutableTreeNode("一等白菜");
DefaultMutableTreeNode c12 = new DefaultMutableTreeNode("二等白菜");
DefaultMutableTreeNode c13 = new DefaultMutableTreeNode("三等白菜");
DefaultMutableTreeNode c2 = new DefaultMutableTreeNode("芹菜");
DefaultMutableTreeNode c21 = new DefaultMutableTreeNode("一等芹菜");
DefaultMutableTreeNode c22 = new DefaultMutableTreeNode("二等芹菜");
DefaultMutableTreeNode c23 = new DefaultMutableTreeNode("三等芹菜");
DefaultMutableTreeNode c3 = new DefaultMutableTreeNode("韭菜");
DefaultMutableTreeNode c31 = new DefaultMutableTreeNode("一等韭菜");
DefaultMutableTreeNode c32 = new DefaultMutableTreeNode("二等韭菜");
DefaultMutableTreeNode c33 = new DefaultMutableTreeNode("三等韭菜");
DefaultMutableTreeNode d1 = new DefaultMutableTreeNode("苹果");
DefaultMutableTreeNode d11 = new DefaultMutableTreeNode("一等苹果");
DefaultMutableTreeNode d12 = new DefaultMutableTreeNode("二等苹果");
DefaultMutableTreeNode d13 = new DefaultMutableTreeNode("三等苹果");
DefaultMutableTreeNode d2 = new DefaultMutableTreeNode("冻梨");
DefaultMutableTreeNode d21 = new DefaultMutableTreeNode("一等冻梨");
DefaultMutableTreeNode d22 = new DefaultMutableTreeNode("二等冻梨");
DefaultMutableTreeNode d23 = new DefaultMutableTreeNode("三等冻梨");
DefaultMutableTreeNode d3 = new DefaultMutableTreeNode("桃子");
DefaultMutableTreeNode d31 = new DefaultMutableTreeNode("一等桃子");
DefaultMutableTreeNode d32 = new DefaultMutableTreeNode("二等桃子");
DefaultMutableTreeNode d33 = new DefaultMutableTreeNode("三等桃子");
jLabel1.setBackground(Color.white);
jLabel1.setFont(new java.awt.Font("Dialog", Font.PLAIN, 44));
jLabel1.setText("商品名称");
jLabel1.setBounds(new Rectangle(315, 25, 190, 79));
jTextField1.setFont(new java.awt.Font("Dialog", Font.PLAIN, 44));
jTextField1.setBounds(new Rectangle(509, 20, 369, 88));
jLabel2.setFont(new java.awt.Font("Dialog", Font.PLAIN, 44));
jLabel2.setText("商品单价");
jLabel2.setBounds(new Rectangle(311, 137, 189, 94));
jTextField2.setFont(new java.awt.Font("Dialog", Font.PLAIN, 44));
jTextField2.setBounds(new Rectangle(509, 144, 296, 84));
jLabel3.setFont(new java.awt.Font("Dialog", Font.PLAIN, 44));
jLabel3.setText("请输入购买数量");
jLabel3.setBounds(new Rectangle(306, 261, 318, 92));
jTextField3.setFont(new java.awt.Font("Dialog", Font.PLAIN, 44));
jTextField3.setBounds(new Rectangle(631, 271, 264, 80));
jButton1.setBounds(new Rectangle(315, 381, 282, 126));
jButton1.setFont(new java.awt.Font("Dialog", Font.PLAIN, 44));
jButton1.setText("继续购买");
jButton1.addActionListener(new Frame1_jButton1_actionAdapter(this));
jButton2.setBounds(new Rectangle(616, 383, 282, 122));
jButton2.setFont(new java.awt.Font("Dialog", Font.PLAIN, 44));
jButton2.setText("确认购买");
jButton2.addActionListener(new Frame1_jButton2_actionAdapter(this));
jLabel4.setFont(new java.awt.Font("Dialog", Font.PLAIN, 44));
jLabel4.setText("您应付的金额:");
jLabel4.setBounds(new Rectangle(469, 515, 287, 81));
jLabel5.setFont(new java.awt.Font("Dialog", Font.PLAIN, 44));
jLabel5.setHorizontalAlignment(SwingConstants.CENTER);
jLabel5.setBounds(new Rectangle(357, 583, 516, 129));
a.add(b);
a.add(c);
a.add(d);
b.add(b1);
b.add(b2);
b.add(b3);
c.add(c1);
c.add(c2);
c.add(c3);
d.add(d1);
d.add(d2);
d.add(d3);
b1.add(b11);
b1.add(b12);
b1.add(b13);
b2.add(b21);
b2.add(b22);
b2.add(b23);
b3.add(b31);
b3.add(b32);
b3.add(b33);
c1.add(c11);
c1.add(c12);
c1.add(c13);
c2.add(c21);
c2.add(c22);
c2.add(c23);
c3.add(c31);
c3.add(c32);
c3.add(c33);
d1.add(d11);
d1.add(d12);
d1.add(d13);
d2.add(d21);
d2.add(d22);
d2.add(d23);
d3.add(d31);
d3.add(d32);
d3.add(d33);
jTree1.setBounds(new Rectangle(12, 8, 287, 782));
jTree1.setFont(new java.awt.Font("Dialog", Font.PLAIN, 22));
jTree1.addTreeSelectionListener(new Frame1_jTree1_treeSelectionAdapter(this));
contentPane.add(jTree1);
contentPane.add(jLabel1);
contentPane.add(jTextField1);
contentPane.add(jLabel2);
contentPane.add(jTextField2);
contentPane.add(jLabel3);
contentPane.add(jTextField3);
contentPane.add(jButton2);
contentPane.add(jButton1);
contentPane.add(jLabel4);
contentPane.add(jLabel5); } public void jTree1_valueChanged(TreeSelectionEvent e) {
try {
DefaultMutableTreeNode node = (DefaultMutableTreeNode) jTree1.
getLastSelectedPathComponent();
String name = "";
Object nodeInfo = node.getUserObject();
if (node.isRoot()) {
jTextField1.setText(nodeInfo.toString()); } else {
if (node.isLeaf()) {
jTextField1.setText(nodeInfo.toString());
if (nodeInfo.toString().equals("一等牛肉")) {
jTextField2.setText("" + 30);
} else if (nodeInfo.toString().equals("二等牛肉")) {
jTextField2.setText("" + 25);
} else if (nodeInfo.toString().equals("三等牛肉")) {
jTextField2.setText("" + 20);
} else if (nodeInfo.toString().equals("一等猪肉")) {
jTextField2.setText("" + 25);
} else if (nodeInfo.toString().equals("二等猪肉")) {
jTextField2.setText("" + 20); } else if (nodeInfo.toString().equals("三等猪肉")) {
jTextField2.setText("" + 15);
} else if (nodeInfo.toString().equals("一等鱼肉")) {
jTextField2.setText("" + 45);
} else if (nodeInfo.toString().equals("二等鱼肉")) {
jTextField2.setText("" + 40); } else if (nodeInfo.toString().equals("三等鱼肉")) {
jTextField2.setText("" + 30);
} else if (nodeInfo.toString().equals("一等白菜")) {
jTextField2.setText("" + 20);
} else if (nodeInfo.toString().equals("二等白菜")) {
jTextField2.setText("" + 15);
} else if (nodeInfo.toString().equals("三等白菜")) {
jTextField2.setText("" + 10);
} else if (nodeInfo.toString().equals("一等芹菜")) {
jTextField2.setText("" + 25); } else if (nodeInfo.toString().equals("二等芹菜")) {
jTextField2.setText("" + 15);
} else if (nodeInfo.toString().equals("三等芹菜")) {
jTextField2.setText("" + 5);
} else if (nodeInfo.toString().equals("一等韭菜")) {
jTextField2.setText("" + 20); } else if (nodeInfo.toString().equals("二等韭菜")) {
jTextField2.setText("" + 15);
} else if (nodeInfo.toString().equals("三等韭菜")) {
jTextField2.setText("" + 10);
} else if (nodeInfo.toString().equals("一等苹果")) {
jTextField2.setText("" + 25);
} else if (nodeInfo.toString().equals("二等苹果")) {
jTextField2.setText("" + 15);
} else if (nodeInfo.toString().equals("三等苹果")) {
jTextField2.setText("" + 10);
} else if (nodeInfo.toString().equals("一等冻梨")) {
jTextField2.setText("" + 20); } else if (nodeInfo.toString().equals("二等冻梨")) {
jTextField2.setText("" + 15);
} else if (nodeInfo.toString().equals("三等冻梨")) {
jTextField2.setText("" + 10);
} else if (nodeInfo.toString().equals("一等桃子")) {
jTextField2.setText("" + 20); } else if (nodeInfo.toString().equals("二等桃子")) {
jTextField2.setText("" + 15);
} else if (nodeInfo.toString().equals("三等桃子")) {
jTextField2.setText("" + 12);
} else {
jTextField1.setText(nodeInfo.toString()); } }
}
} catch (Exception ex) {
System.out.print(ex); }
} String s1;
int i = 0;
int i4[];
int v = 0;
public void jButton1_actionPerformed(ActionEvent e) { i++;
for (; i - 1 < i; i++) {
int i1 = Integer.parseInt(jTextField2.getText());
int i2 = Integer.parseInt(jTextField3.getText());
int i3 = i1 * i2;
i4[v] = i3; }
v++; jTextField1.setText("");
jTextField2.setText("");
jTextField3.setText("");
} public void jButton2_actionPerformed(ActionEvent e) {
int yu = 0;
for (int t = 0; t < i4.length; t++) { yu = yu + i4[t]; }
s1 = Integer.toString(yu);
jLabel5.setText(s1);
}
class Frame1_jTree1_treeSelectionAdapter implements TreeSelectionListener {
private Frame1 adaptee;
Frame1_jTree1_treeSelectionAdapter(Frame1 adaptee) {
this.adaptee = adaptee;
} public void valueChanged(TreeSelectionEvent e) {
adaptee.jTree1_valueChanged(e);
}
}
}
class Frame1_jButton2_actionAdapter implements ActionListener {
private Frame1 adaptee;
Frame1_jButton2_actionAdapter(Frame1 adaptee) {
this.adaptee = adaptee;
} public void actionPerformed(ActionEvent e) {
adaptee.jButton2_actionPerformed(e);
}
}
class Frame1_jButton1_actionAdapter implements ActionListener {
private Frame1 adaptee;
Frame1_jButton1_actionAdapter(Frame1 adaptee) {
this.adaptee = adaptee;
} public void actionPerformed(ActionEvent e) { adaptee.jButton1_actionPerformed(e);
}
}