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mark which pieces of Study need work and to be finished

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2020-03-03 03:09:05 -06:00
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@@ -28,18 +28,18 @@ If you find something incorrect, feel free to contribute and modify.
- [Guidelines](#guidelines) - [Guidelines](#guidelines)
- [Most Common Imports](#most-common-imports) - [Most Common Imports](#most-common-imports)
- [Declare, Instantiate, Initialize](#declare-instantiate-initialize) - [Declare, Instantiate, Initialize](#declare-instantiate-initialize)
- [Default Array Values](#default-array-values) - [!!! Default Array Values](#-default-array-values)
- [Primitive Arrays](#primitive-arrays) - [!!! Primitive Arrays](#-primitive-arrays)
- [ArrayList Arrays](#arraylist-arrays) - [!!! ArrayList Arrays](#-arraylist-arrays)
- [When Primitive Array Casts Are Required](#when-primitive-array-casts-are-required) - [When Primitive Array Casts Are Required](#when-primitive-array-casts-are-required)
- [Basic Boolean Circuitry](#basic-boolean-circuitry) - [!!! Basic Boolean Circuitry](#-basic-boolean-circuitry)
- [How to Rotate Matrixes](#how-to-rotate-matrixes) - [!!! How to Rotate Matrixes](#-how-to-rotate-matrixes)
- [Boolean Truth Tables & Symbols](#boolean-truth-tables--symbols) - [!!! Boolean Truth Tables & Symbols](#-boolean-truth-tables--symbols)
- [Bitwise Meanings](#bitwise-meanings) - [!!! Bitwise Meanings](#-bitwise-meanings)
- [How to Sort Different Types of Arrays](#how-to-sort-different-types-of-arrays) - [!!! How to Sort Different Types of Arrays](#-how-to-sort-different-types-of-arrays)
- [Primitives](#primitives) - [!!! Primitives](#-primitives)
- [List Implementers (ArrayList, ?, ?..)](#list-implementers-arraylist--) - [!!! List Implementers (ArrayList, ?, ?..)](#-list-implementers-arraylist--)
- [char And int Are Interchangeable](#char-and-int-are-interchangeable) - [!!! char And int Are Interchangeable](#-char-and-int-are-interchangeable)
- [Classes Call From Where They Originate](#classes-call-from-where-they-originate) - [Classes Call From Where They Originate](#classes-call-from-where-they-originate)
- [`List.remove(int i)` Element Shifting](#listremoveint-i-element-shifting) - [`List.remove(int i)` Element Shifting](#listremoveint-i-element-shifting)
- [`List.set(int i, Object obj)` requires a element to function](#listsetint-i-object-obj-requires-a-element-to-function) - [`List.set(int i, Object obj)` requires a element to function](#listsetint-i-object-obj-requires-a-element-to-function)
@@ -52,7 +52,7 @@ If you find something incorrect, feel free to contribute and modify.
- [`hasNext` and `hasNextInt`](#hasnext-and-hasnextint) - [`hasNext` and `hasNextInt`](#hasnext-and-hasnextint)
- [`next` and `nextInt`](#next-and-nextint) - [`next` and `nextInt`](#next-and-nextint)
- [Examples with Explanations](#examples-with-explanations) - [Examples with Explanations](#examples-with-explanations)
- [Post-increment and Post-decrement Order is Important](#post-increment-and-post-decrement-order-is-important) - [!!! Post-increment and Post-decrement Order is Important](#-post-increment-and-post-decrement-order-is-important)
<!-- /TOC --> <!-- /TOC -->
@@ -385,13 +385,13 @@ import java.util.Arrays;
} }
``` ```
### Default Array Values ### !!! Default Array Values
#### Primitive Arrays #### !!! Primitive Arrays
[Run on Repl.it](https://repl.it/@Xevion/PrimitiveArrayNullOrZero) [Run on Repl.it](https://repl.it/@Xevion/PrimitiveArrayNullOrZero)
#### ArrayList Arrays #### !!! ArrayList Arrays
### When Primitive Array Casts Are Required ### When Primitive Array Casts Are Required
@@ -420,25 +420,25 @@ static String[] method2() {
It also expects a `new`, not just `String[]` before the *literal* part of a literal array definition. It also expects a `new`, not just `String[]` before the *literal* part of a literal array definition.
### Basic Boolean Circuitry ### !!! Basic Boolean Circuitry
### How to Rotate Matrixes ### !!! How to Rotate Matrixes
### Boolean Truth Tables & Symbols ### !!! Boolean Truth Tables & Symbols
### Bitwise Meanings ### !!! Bitwise Meanings
### How to Sort Different Types of Arrays ### !!! How to Sort Different Types of Arrays
For arrays, they can be sorted using `Arrays.sort` from `java.util.Arrays`. For arrays, they can be sorted using `Arrays.sort` from `java.util.Arrays`.
For lists, one can use `Collections.sort` to sort any class that implements the `List` interface. For lists, one can use `Collections.sort` to sort any class that implements the `List` interface.
#### Primitives #### !!! Primitives
#### List Implementers (ArrayList, ?, ?..) #### !!! List Implementers (ArrayList, ?, ?..)
### char And int Are Interchangeable ### !!! char And int Are Interchangeable
``` ```
void method(int a, char b) void method(int a, char b)
@@ -634,7 +634,7 @@ for(int i = 0; i++ < 5;)
The Scanner will throw an exception while trying to parse `h` for an Integer. This is why `hasNextInt` is used, besides ensuring the Scanner input is not exhausted. The Scanner will throw an exception while trying to parse `h` for an Integer. This is why `hasNextInt` is used, besides ensuring the Scanner input is not exhausted.
### Post-increment and Post-decrement Order is Important ### !!! Post-increment and Post-decrement Order is Important
```java ```java
public static int m(int x, int y) { public static int m(int x, int y) {