编写一个字符界面的Java Application程序。接受用户输入的10个整数，并输出这10个整数的最大值

Answer 1

给你一个方法 是随意输入N个数字 输出最大的数字 public static int max(String str){ String[] st = str.split(" "); int tep=0; for(int i=1;i<st.length;i++) { if(tep<Integer.parseInt(st[i].toString())) { tep= Integer.parseInt(st[i].toString()); } } return tep; } public static void main(String args[]){ String str=""; while(true) { BufferedReader in = new BufferedReader(new InputStreamReader(System.in)); try { System.out.println("请输入数字且用空格隔开："); str = in.readLine(); System.out.println("最大的数是："); System.out.println(max(str)); } catch (IOException e) { e.printStackTrace(); } }

Answer 2

import javax.swing.*; import java.awt.*; import java.awt.event.*; public class test { public static void main(String[] args) { JFrame frame = new JFrame("Find Max Value"); frame.setSize(300, 300); frame.setLocation(100, 100); final JTextField f = new JTextField(); f.setColumns(20); FlowLayout fl = new FlowLayout(FlowLayout.CENTER, 100, 0); frame.setLayout(fl); frame.add(f); JButton b = new JButton("找出最大值"); final JLabel l = new JLabel("null"); frame.add(l); frame.add(b); b.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent arg0) { String s = f.getText(); if (s.length() == 0 || s.matches("[^\\d\\.]+") ) { l.setText("输入有误!"); return; } String[] line = s.split("[\\s]+"); double max = Double.parseDouble(line[0]); for(int i = 1; i < line.length; ++i) { double a = Double.parseDouble(line[i]); if (a > max) max = a; } l.setText("最大值:" + max); } }); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setVisible(true); } } //-----------add by 小月------ import java.awt.BorderLayout; import java.awt.Container; import java.awt.FlowLayout; import java.awt.TextField; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.util.ArrayList; import java.util.Collections; import java.util.List; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JPanel; public class Test extends JFrame implements ActionListener{ private Container c; private TextField[] text; private JButton btn; private JLabel result; public Test(){ setBounds(100, 200, 800, 300); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); c = getContentPane(); text = new TextField[10]; JPanel NORTH = new JPanel(new FlowLayout()); c.add(NORTH,BorderLayout.NORTH); JPanel center = new JPanel(new FlowLayout()); result = new JLabel(""); center.add(result); c.add(center); for(int i=0;i<text.length;i++){ text[i] = new TextField(4); NORTH.add(text[i]); } btn = new JButton("计算"); c.add(btn,BorderLayout.SOUTH); btn.addActionListener(this); } public void actionPerformed(ActionEvent e) { List list = new ArrayList(); for(int i=0;i<text.length;i++){ String str = text[i].getText(); if(str==null||"".equals(str)){ result.setText("输入10个整数"); return; } list.add(Integer.parseInt(str)); } Collections.sort(list); result.setText("最大的数值是："+list.get(9)); } public static void main(String[] args) { new Test().setVisible(true); } }