testfor1.java

还不错的java基本实例

package ch4;
import javax.swing.*;
public class TestFor1
{
    public static void main(String[] args){
	
		final int StartChar='A';
		final int EndChar='Z';
		final int CharPerLine=5;
		String OutPut="";

		for(int i=StartChar,j=1;i<=EndChar;i++,j++)
		{
			OutPut+=i+"="+(char)i+"      ";
			if(0==(j%CharPerLine))
			OutPut+="\n";
		}

		 JOptionPane.showMessageDialog(null,OutPut); 
	}
}