testfor.java

还不错的java基本实例

package ch4;
import javax.swing.*;
public class TestFor
{
    public static void main(String[] args){
	
		final int StartChar='A';
		final int EndChar='Z';
		final int CharPerLine=5;
		String OutPut="";
		for(int i=StartChar;i<=EndChar;i+=CharPerLine)
		{
			for(int j=0;j<CharPerLine;j++)
			{
				OutPut+=i+j+"="+(char)(i+j)+"       ";
			}
			OutPut+="\n";
		}

		JOptionPane.showMessageDialog(null,OutPut); 
	}
}