我写了一个java代码,用于查找输入值组的频率。 这是输出的最后部分应该看起来像什么。java gui窗口
边界是:
间隔[11.5 - 27.5]包含:2号(多个)
间隔[27.5 - 43.5]包含:1号(多个)
间隔[43.5 - 59.5 ]不包含元素
间隔[59.5 - 75.5]包含:1号(多个)
间隔[75.5 - 91.5]包含:1号(多个)
但是当我试图将它转换为gui时,我遇到了一个小问题,那就是: 每行结果都显示在一个新窗口中。
这是GUI代码:
import java.util.ArrayList;
import java.util.Scanner;
import javax.swing.JOptionPane;
public class Frequency
{
private static ArrayList<Integer> FindNumbersInInterval(int[] array,double startInterval,double endInterval)
{
ArrayList<Integer> result = new ArrayList<Integer>() ;
for(int v: array)
{
if(v >= startInterval && v <= endInterval)
{
result.add(v);
}
}
return result;
}
public static void main(final String args[])
{
int smallest = Integer.MAX_VALUE;
int largest = Integer.MIN_VALUE;
int range = 0;
String numberOfNumbers =
JOptionPane.showInputDialog("How many numbers do you want to enter: ");
int num=Integer.parseInt(numberOfNumbers);
int array[]=new int[num];
for(int i=0; i<array.length; i++)
{
String theNumbers =
JOptionPane.showInputDialog("Enter the numbers now: ");
array[i]=Integer.parseInt(theNumbers);
{
if(array[i] < smallest)
smallest = array[i];
if(array[i] > largest)
largest = array[i];
}
}
JOptionPane.showMessageDialog(null,"Smallest is "+smallest,"Smallest",JOptionPane.PLAIN_MESSAGE);
JOptionPane.showMessageDialog(null,"Largest is "+largest,"Largest",JOptionPane.PLAIN_MESSAGE);
range = largest - smallest;
JOptionPane.showMessageDialog(null,"Range is "+range,"The Range",JOptionPane.PLAIN_MESSAGE);
String subInterval =
JOptionPane.showInputDialog("Enter the number of subinterval: ");
int subnum = Integer.parseInt(subInterval);
int subwid = range/subnum;
JOptionPane.showMessageDialog(null,"The width of subinterval is "+subwid,"width",JOptionPane.PLAIN_MESSAGE);
double boundary = smallest - .5;
JOptionPane.showMessageDialog(null,"Boundaries are ","The Boundaries",JOptionPane.PLAIN_MESSAGE);
while(boundary < largest + .5)
{
double startInterval = boundary;
double endInterval = boundary + subwid;
ArrayList<Integer> numbersInInterval = FindNumbersInInterval(array, startInterval, endInterval);
if(numbersInInterval.isEmpty())
JOptionPane.showMessageDialog(null,"Interval "+startInterval+" - "+endInterval+" does NOT contain elements","result",JOptionPane.PLAIN_MESSAGE);
else {
JOptionPane.showMessageDialog(null,"Interval "+startInterval+" - "+endInterval+" contains "+numbersInInterval.size(),"result",JOptionPane.PLAIN_MESSAGE);
}
boundary += subwid;
}
}
}
所以,我的问题是我怎么做的结果组进来一个窗口?
日Thnx ..
我会一直使用(一个JLabel/JTextField中)和操作处理程序,但我不知道该怎么对JTextfield的值进行一些计算。 关于你的第一部分我该如何在循环外显示它,这种方式比动作处理更简单。 – 2011-12-25 18:23:43
我更新了答案 – 2011-12-26 05:59:39