Version: 2018.3 (switch to 2019.1)
LanguageEnglish
  • C#

String

Suggest a change

Success!

Thank you for helping us improve the quality of Unity Documentation. Although we cannot accept all submissions, we do read each suggested change from our users and will make updates where applicable.

Close

Submission failed

For some reason your suggested change could not be submitted. Please <a>try again</a> in a few minutes. And thank you for taking the time to help us improve the quality of Unity Documentation.

Close

Cancel

Description

Represents text as a series of Unicode characters.

Unity uses the .Net System.String class for strings. See the Microsoft MSDN documentation for Strings for more details.

Note: In c# string is an alias for System.String. This means that you can use either string or String in your code (if you have added using System to the top of your script.) Note: In Javascript strings are represented using String which you should use in your Unity script code. Here are some basic uses of the String class.

using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour { void Start() { // prints hello string s = "hello"; Debug.Log(s);

// prints hello world s = string.Format("{0} {1}", s, "world"); Debug.Log(s);

// prints helloworld s = string.Concat("hello", "world"); Debug.Log(s);

// prints HELLOWORLD s = s.ToUpper(); Debug.Log(s);

// prints helloworld s = s.ToLower(); Debug.Log(s);

// prints 'e' Debug.Log(s[1]);

// prints 42 int i = 42; s = i.ToString(); Debug.Log(s);

// prints -43 s = "-43"; i = int.Parse(s); Debug.Log(i);

// prints 3.141593 (an approximation) float f = 3.14159265359F; s = f.ToString(); Debug.Log(s);

// prints -7.141593 (an approximation) s = "-7.14159265358979"; f = float.Parse(s); Debug.Log(f); } }

This example shows how you can examine the String class and see the methods it contains.

using System;
using System.Reflection;
using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour { void Start() { Type t = typeof(System.String);

// Iterate over all the methods from the System.String class and display // return type and parameters. // This reveals all the things you can do with a String. foreach (MethodInfo mi in t.GetMethods()) { System.String s = System.String.Format("{0} {1} (", mi.ReturnType, mi.Name); ParameterInfo[] pars = mi.GetParameters();

for (int j = 0; j < pars.Length; j++) { s = String.Concat(s, String.Format("{0}{1}", pars[j].ParameterType, ((j == pars.Length - 1) ? "" : ", "))); } s = String.Concat(s, ")"); Debug.Log(s); } } }

Properties

EmptyRepresents the empty string. (Read Only)
LengthGets the number of characters in this instance (Read Only).

Did you find this page useful? Please give it a rating: