Cheatography
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Data Typesbool | Boolean value | byte | 8-bit unsigned integer | char | 16-bit Unicode character | decimal | 128-bit precise decimal values with 28-29 significant digits | double | 64-bit double-precision floating point | float | 32-bit single-precision floating point | int | 32-bit signed integer | long | 64-bit signed integer | object | Base type for all other types | sbyte | 8-bit signed integer | short | 16-bit signed integer | string | String value | uint | 32-bit unsigned integer | ulong | 64-bit unsigned integer | ushort | 16-bit unsigned integer |
Type Conversion MethodsToBoolean | ToByte | ToChar | ToDateTime | ToDecimal | ToDouble | ToInt16 | ToInt32 | ToInt64 | ToSbyte | ToSingle | ToString | ToType | ToUInt16 | ToUInt32 | ToUInt64 |
Naming ConventionsClass | MyClass | Method | MyMethod | Local variable | myLocalVariable | Private variable | _myPrivateVariable | Constant | MyConstant |
Arraysint[] array = new int[] {1, 2, 3} | int[] array = {1, 2, 3} | var array = new int[] {1, 2, 3} | int[] array = new int[3] |
Statementsif-else | if (true) {...}
else if (true) {...}
else {...} | switch | switch (var) {
case 1: break;
default: break; } | for | for (int i =1; i < 5; i++) {...} | foreach-in | foreach (int item in array) {...} | while | while (true) {...} | do... while | do {...}
while (true); | try-catch-finally | try {...}
catch (Exception e) {...}
catch {...}
finally {...} |
ClassesClass | public class Dog {...} | Inheritance | public class Dog: Pet {...} | Constructor (no parameters) | public Dog () {...} | Constructors can co-exist | Constructor (one parameter) | public Dog (string var) {...} | Constructors can co-exist | Field | public string name | Static Class | public static class Dog {...} | Must only have static members | Static Member | public static int = 1 | Finalizer (destructor) | ~Dog () {...} | Cannot have modifiers or parameters |
| | Access Modifierspublic | Accessible by any other code in the same assembly or another assembly that references it | private | Only accessible by code in the same class or struct | protected | Only accessible by code in the same class or struct, or in a derived class | internal | Accessible by any code in the same assembly, but not from another assembly | protected internal | Accessible by any code in the same assembly, or by any derived class in another assembly |
Other Modifiersabstract | Indicates that a class is intended only to be a base class of other classes | async | Indicates that the modified method, lambda expression, or anonymous method is asynchronous | const | Specifies that the value of the field or the local variable cannot be modified | event | Declares an event | extern | Indicates that the method is implemented externally | new | Explicitly hides a member inherited from a base class | override | Provides a new implementation of a virtual member inherited from a base class | partial | Defines partial classes, structs and methods throughout the same assembly | readonly | Declares a field that can only be assigned values as part of the declaration or in a constructor in the same class | sealed | Specifies that a class cannot be inherited | static | Declares a member that belongs to the type itself instead of to a specific object | unsafe | Declares an unsafe context | virtual | Declares a method or an accessor whose implementation can be changed by an overriding member in a derived class | volatile | Indicates that a field can be modified in the program by something such as the operating system, the hardware, or a concurrently executing thread |
Assignment Operators= | Simple assignment | += | Addition assignment | -= | Subtraction assignment | *= | Multiplication assignment | /= | Division assignment | %= | Remainder assignment | &= | AND assignment | |= | OR assignment | ^ | XOR assignment | <<= | Left-shift assignment | >>= | Right-shift assignment |
Comparison Operators< | Less than | > | Greater than | <= | Less than or equal to | >= | Greater than or equal to | == | Equal to | != | Not equal to |
Arithmetic Operators+ | Add numbers | - | Subtract numbers | * | Multiply numbers | / | Divide numbers | % | Compute remainder of division of numbers | ++ | Increases integer value by 1 | -- | Decreases integer value by 1 |
Logical and Bitwise Operators&& | Logical AND | || | Logical OR | ! | Logical NOT | & | Binary AND | | | Binary OR | ^ | Binary XOR | ~ | Binary Ones Complement | << | Binary Left Shift | >> | Binary Right Shift |
Other Operatorssizeof() | Returns the size of a data type | typeof() | Returns the type of a class | & | Returns the address of a variable | * | Pointer to a variable | ? : | Conditional expression | is | Determines whether an object is of a specific type | as | Cast without raising an exception if the cast fails |
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