Question

how to get string variables from a whole string in java.

if i am given a string which is created this way:

String s = "Name:" + name + "Age:" + age + "Sex:" + sex;

how can i get name, age, sex from this String s.

I cannot use getWord(position) or something like that because i dont know how many words will be there in name, and how the age is represented
age = “22 years” or age = “22 years 5 months”.

Answer 1

I suggest you to have the Name, Age and Sex splitted by "," character.

It means:

String s = "Name:" + name + ",Age:" + age + ",Sex:" + sex;

Then you can split the string s by “,”

String properties = s.split(",");

Then from properties variable, you can split by ":" to take the Property name and the value of that property.

Is that clear?

I’m adding more code to support another ways as you wanted:

String name = "Thuan";
String age = "27";
String sex = "male";
String s = "Name:" + name + "Age:" + age + "Sex:" + sex;

int nameIndex = s.indexOf("Name:");
int ageIndex = s.indexOf("Age:");
int sexIndex = s.indexOf("Sex:");

String theName = s.substring(nameIndex + "Name:".length(), ageIndex);
String theAge = s.substring(ageIndex + "Age:".length(), sexIndex);
String theSex = s.substring(sexIndex + "Sex:".length(), s.length());

System.out.println(theName);
System.out.println(theAge);
System.out.println(theSex);

Please be note that this is just example show you the logic, you need to refactor yourself.