tools.java

企业级的即时通软件。。java语言写的 这是服务端部份。

package edu.sccp.chat.tools;

import java.awt.Color;
import java.awt.Font;

import javax.swing.JComponent;

public class Tools {
	
	public static boolean checkMsg(String str,int minLength,int maxLength,boolean isDigit) {
		if(isDigit){
			char[] ch=str.toCharArray();
			for(int i=0 ;i<ch.length;i++){
				if(!Character.isDigit(ch[i])){
					return false;
				}					
			}
			if(str.length()<=maxLength && str.length()>=minLength){
				return true;
			}else{
				return false;
			}
				
		}else{
			if(str.length()<=maxLength && str.length()>=minLength){
				return true;
			}else{
				return false;
			}
		}	
		
		
	}

	/*
	 * check length
	 */
	public static boolean  checkLength(String str,int minLength,int maxLength){
		boolean flag=false;
		if(str.length()<=maxLength && str.length()>=minLength)
			flag=true;
		return flag;
	}
	/*
	 * Check the message whether or not is digit
	 */
	public static boolean isDigit(String str){
		boolean flag=true;
		char[] ch=str.toCharArray();
		for(int i=0;i<ch.length;i++){
			if(!Character.isDigit(ch[i]))
				flag=false;
		}
		
		return flag;		
	}
	
	/*
	 * Check the message whether or not  in  range.
	 */
	public static boolean inRange(String str,int min,int max){
		boolean flag=false;
		if(Tools.isDigit(str)){
			int i=Integer.parseInt(str);
			if(i>=min && i<=max){
				flag=true;
			}
		}
		return flag;	
	}
	
	public static boolean inRange(String str,int min){
		boolean flag=false;
		if(Tools.isDigit(str)){
			int i=Integer.parseInt(str);
			if(i>=min){
				flag=true;
			}
		}
		return flag;	
	}
	
	/*
	 * check message whether or not include char
	 */
	public static boolean includeChar(String str,char ch){		
		
		boolean flag=false;
		char[] c=str.toCharArray();
		for(int i=0;i<c.length;i++){
			if(c[i]==ch)
				flag=true;
		}
		return flag;
	}
	
	public static void setFormat(JComponent component){
		Font font=new Font("新宋体",Font.PLAIN,12);
		Color color=Color.red;
		component.setFont(font);
		component.setForeground(color);
	}
	public static void setFormat(JComponent component,Color color){
		component.setForeground(color);
	}
	
}