java空和非空判断

Posted 2020-10-27 SnowsF

public static boolean isEmpty(String str){
if("".equals(str)||str==null){
return true;
}else{
return false;
}
}
public static boolean isNotEmpty(String str){
if(!"".equals(str)&&str!=null){
return true;
}else{
return false;
}

}