stringutils.java

电子通讯录实现网上保存朋友

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package utils;

/**
 *
 * @author Jason
 */
public class StringUtils {

    /**
     * <code>isNullOrEmptyWithSpacesOnly</code>
     * 
     * @param str
     * @return
     */
    public static boolean isNullOrEmptyWithSpacesOnly(String str){
        boolean flag = true;
        if(str != null &&
                str.trim().length() != 0){
            flag = false;
        }
        return flag;
    }

}