JSONArray (hutool 2.16.2 API)

java.lang.Object
- com.xiaoleilu.hutool.getter.OptNullBasicTypeGetter<K>
- - com.xiaoleilu.hutool.getter.OptNullBasicTypeFromObjectGetter<K>
  - - com.xiaoleilu.hutool.json.JSONGetter<Integer>
    - - com.xiaoleilu.hutool.json.JSONArray

所有已实现的接口:

BasicTypeGetter<Integer>, OptBasicTypeGetter<Integer>, JSON, Iterable<Object>, Collection<Object>, List<Object>
```
public class JSONArray
extends JSONGetter<Integer>
implements JSON, List<Object>
```
JSON数组

作者:

looly

构造器概要

构造器
构造器和说明
`JSONArray()` Construct an empty JSONArray.
`JSONArray(JSONTokener x)` Construct a JSONArray from a JSONTokener.
`JSONArray(Object arrayOrCollection)` Construct a JSONArray from an array or Collection
`JSONArray(String source)` Construct a JSONArray from a source JSON text.

方法概要

方法
限定符和类型	方法和说明
`void`	`add(int index, Object element)`
`boolean`	`add(Object e)`
`boolean`	`addAll(Collection<? extends Object> c)`
`boolean`	`addAll(int index, Collection<? extends Object> c)`
`void`	`clear()`
`boolean`	`contains(Object o)`
`boolean`	`containsAll(Collection<?> c)`
`boolean`	`equals(Object other)` Determine if two JSONArrays are similar.
`Object`	`get(int index)`
`Object`	`getObj(Integer index, Object defaultValue)` 获取Object属性值
`int`	`indexOf(Object o)`
`boolean`	`isEmpty()`
`boolean`	`isNull(int index)` Determine if the value is null.
`Iterator<Object>`	`iterator()`
`String`	`join(String separator)` Make a string from the contents of this JSONArray.
`int`	`lastIndexOf(Object o)`
`ListIterator<Object>`	`listIterator()`
`ListIterator<Object>`	`listIterator(int index)`
`JSONArray`	`put(int index, Object value)` 加入或者替换JSONArray中指定Index的值，如果index大于JSONArray的长度，将在指定index设置值，之前的位置填充JSONNull.Null
`JSONArray`	`put(Object value)` Append an object value.
`Object`	`remove(int index)`
`boolean`	`remove(Object o)`
`boolean`	`removeAll(Collection<?> c)`
`boolean`	`retainAll(Collection<?> c)`
`Object`	`set(int index, Object element)`
`int`	`size()`
`List<Object>`	`subList(int fromIndex, int toIndex)`
`Object[]`	`toArray()`
`<T> T[]`	`toArray(T[] a)`
`JSONObject`	`toJSONObject(JSONArray names)` Produce a JSONObject by combining a JSONArray of names with the values of this JSONArray.
`String`	`toJSONString(int indentFactor)` Make a prettyprinted JSON text of this JSONArray.
`String`	`toString()` Make a JSON text of this JSONArray.
`Writer`	`write(Writer writer)` 将JSON内容写入Writer，无缩进 Warning: This method assumes that the data structure is acyclical.
`Writer`	`write(Writer writer, int indentFactor, int indent)` 将JSON内容写入Writer Warning: This method assumes that the data structure is acyclical.

从类继承的方法 com.xiaoleilu.hutool.json.JSONGetter
getJSONArray, getJSONObject

从类继承的方法 com.xiaoleilu.hutool.getter.OptNullBasicTypeFromObjectGetter
getBigDecimal, getBigInteger, getBool, getByte, getChar, getDouble, getEnum, getFloat, getInt, getLong, getShort, getStr

从类继承的方法 com.xiaoleilu.hutool.getter.OptNullBasicTypeGetter
getBigDecimal, getBigInteger, getBool, getByte, getChar, getDouble, getEnum, getFloat, getInt, getLong, getObj, getShort, getStr

从类继承的方法 java.lang.Object
clone, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

从接口继承的方法 java.util.List
hashCode

- 构造器详细资料
  - JSONArray
```
public JSONArray()
```
    Construct an empty JSONArray.
  - JSONArray
```
public JSONArray(JSONTokener x)
          throws JSONException
```
    Construct a JSONArray from a JSONTokener.
    
    参数:
    x - A JSONTokener
    
    抛出:
    
    JSONException - If there is a syntax error.
  - JSONArray
```
public JSONArray(String source)
          throws JSONException
```
    Construct a JSONArray from a source JSON text.
    
    参数:
    source - A string that begins with [ (left bracket) and ends with ] (right bracket).
    
    抛出:
    
    JSONException - If there is a syntax error.
  - JSONArray
```
public JSONArray(Object arrayOrCollection)
          throws JSONException
```
    Construct a JSONArray from an array or Collection
    
    抛出:
    
    JSONException - If not an array.
- 方法详细资料
  - isNull
```
public boolean isNull(int index)
```
    Determine if the value is null.
    
    参数:
    index - The index must be between 0 and size() - 1.
    
    返回:
    true if the value at the index is null, or if there is no value.
  - join
```
public String join(String separator)
            throws JSONException
```
    Make a string from the contents of this JSONArray. The separator string is inserted between each element. Warning: This method assumes that the data structure is acyclical.
    
    参数:
    separator - A string that will be inserted between the elements.
    
    返回:
    a string.
    
    抛出:
    
    JSONException - If the array contains an invalid number.
  - get
```
public Object get(int index)
```
    指定者:
    
    get 在接口中 List<Object>
  - getObj
```
public Object getObj(Integer index,
            Object defaultValue)
```
    从接口复制的说明: OptBasicTypeGetter
    
    获取Object属性值
    
    指定者:
    
    getObj 在接口中 OptBasicTypeGetter<Integer>
    
    指定者:
    
    getObj 在类中 OptNullBasicTypeFromObjectGetter<Integer>
    
    参数:
    index - 属性名
    defaultValue - 默认值
    
    返回:
    属性值，无对应值返回defaultValue
  - put
```
public JSONArray put(Object value)
```
    Append an object value. This increases the array's length by one.
    
    参数:
    value - An object value. The value should be a Boolean, Double, Integer, JSONArray, JSONObject, Long, or String, or the JSONNull.NULL object.
    
    返回:
    this.
  - put
```
public JSONArray put(int index,
            Object value)
              throws JSONException
```
    加入或者替换JSONArray中指定Index的值，如果index大于JSONArray的长度，将在指定index设置值，之前的位置填充JSONNull.Null
    
    参数:
    index - 位置
    value - 值对象. 可以是以下类型: Boolean, Double, Integer, JSONArray, JSONObject, Long, String, or the JSONNull.NULL.
    
    返回:
    this.
    
    抛出:
    
    JSONException - index < 0 或者非有限的数字
  - equals
```
public boolean equals(Object other)
```
    Determine if two JSONArrays are similar. They must contain similar sequences.
    
    指定者:
    
    equals 在接口中 Collection<Object>
    
    指定者:
    
    equals 在接口中 List<Object>
    
    覆盖:
    
    equals 在类中 Object
    
    参数:
    other - The other JSONArray
    
    返回:
    true if they are equal
  - toJSONObject
```
public JSONObject toJSONObject(JSONArray names)
                        throws JSONException
```
    Produce a JSONObject by combining a JSONArray of names with the values of this JSONArray.
    
    参数:
    names - A JSONArray containing a list of key strings. These will be paired with the values.
    
    返回:
    A JSONObject, or null if there are no names or if this JSONArray has no values.
    
    抛出:
    
    JSONException - If any of the names are null.
  - toString
```
public String toString()
```
    Make a JSON text of this JSONArray. For compactness, no unnecessary whitespace is added. If it is not possible to produce a syntactically correct JSON text then null will be returned instead. This could occur if the array contains an invalid number.
    Warning: This method assumes that the data structure is acyclical.
    
    覆盖:
    
    toString 在类中 Object
    
    返回:
    a printable, displayable, transmittable representation of the array.
  - toJSONString
```
public String toJSONString(int indentFactor)
                    throws JSONException
```
    Make a prettyprinted JSON text of this JSONArray. Warning: This method assumes that the data structure is acyclical.
    
    指定者:
    
    toJSONString 在接口中 JSON
    
    参数:
    indentFactor - The number of spaces to add to each level of indentation.
    
    返回:
    a printable, displayable, transmittable representation of the object, beginning with [ (left bracket) and ending with ] (right bracket).
    
    抛出:
    
    JSONException
  - write
```
public Writer write(Writer writer)
             throws JSONException
```
    从接口复制的说明: JSON
    
    将JSON内容写入Writer，无缩进
    Warning: This method assumes that the data structure is acyclical.
    
    指定者:
    
    write 在接口中 JSON
    
    参数:
    writer - Writer
    
    返回:
    Writer
    
    抛出:
    
    JSONException
  - write
```
public Writer write(Writer writer,
           int indentFactor,
           int indent)
             throws JSONException
```
    从接口复制的说明: JSON
    
    将JSON内容写入Writer
    Warning: This method assumes that the data structure is acyclical.
    
    指定者:
    
    write 在接口中 JSON
    
    参数:
    writer - writer
    indentFactor - 每一级别的缩进量
    indent - 顶级别缩进量
    
    返回:
    Writer
    
    抛出:
    
    JSONException
  - iterator
```
public Iterator<Object> iterator()
```
    指定者:
    
    iterator 在接口中 Iterable<Object>
    
    指定者:
    
    iterator 在接口中 Collection<Object>
    
    指定者:
    
    iterator 在接口中 List<Object>
  - size
```
public int size()
```
    指定者:
    
    size 在接口中 Collection<Object>
    
    指定者:
    
    size 在接口中 List<Object>
  - isEmpty
```
public boolean isEmpty()
```
    指定者:
    
    isEmpty 在接口中 Collection<Object>
    
    指定者:
    
    isEmpty 在接口中 List<Object>
  - contains
```
public boolean contains(Object o)
```
    指定者:
    
    contains 在接口中 Collection<Object>
    
    指定者:
    
    contains 在接口中 List<Object>
  - toArray
```
public Object[] toArray()
```
    指定者:
    
    toArray 在接口中 Collection<Object>
    
    指定者:
    
    toArray 在接口中 List<Object>
  - toArray
```
public <T> T[] toArray(T[] a)
```
    指定者:
    
    toArray 在接口中 Collection<Object>
    
    指定者:
    
    toArray 在接口中 List<Object>
  - add
```
public boolean add(Object e)
```
    指定者:
    
    add 在接口中 Collection<Object>
    
    指定者:
    
    add 在接口中 List<Object>
  - remove
```
public Object remove(int index)
```
    指定者:
    
    remove 在接口中 List<Object>
  - remove
```
public boolean remove(Object o)
```
    指定者:
    
    remove 在接口中 Collection<Object>
    
    指定者:
    
    remove 在接口中 List<Object>
  - containsAll
```
public boolean containsAll(Collection<?> c)
```
    指定者:
    
    containsAll 在接口中 Collection<Object>
    
    指定者:
    
    containsAll 在接口中 List<Object>
  - addAll
```
public boolean addAll(Collection<? extends Object> c)
```
    指定者:
    
    addAll 在接口中 Collection<Object>
    
    指定者:
    
    addAll 在接口中 List<Object>
  - addAll
```
public boolean addAll(int index,
             Collection<? extends Object> c)
```
    指定者:
    
    addAll 在接口中 List<Object>
  - removeAll
```
public boolean removeAll(Collection<?> c)
```
    指定者:
    
    removeAll 在接口中 Collection<Object>
    
    指定者:
    
    removeAll 在接口中 List<Object>
  - retainAll
```
public boolean retainAll(Collection<?> c)
```
    指定者:
    
    retainAll 在接口中 Collection<Object>
    
    指定者:
    
    retainAll 在接口中 List<Object>
  - clear
```
public void clear()
```
    指定者:
    
    clear 在接口中 Collection<Object>
    
    指定者:
    
    clear 在接口中 List<Object>
  - set
```
public Object set(int index,
         Object element)
```
    指定者:
    
    set 在接口中 List<Object>
  - add
```
public void add(int index,
       Object element)
```
    指定者:
    
    add 在接口中 List<Object>
  - indexOf
```
public int indexOf(Object o)
```
    指定者:
    
    indexOf 在接口中 List<Object>
  - lastIndexOf
```
public int lastIndexOf(Object o)
```
    指定者:
    
    lastIndexOf 在接口中 List<Object>
  - listIterator
```
public ListIterator<Object> listIterator()
```
    指定者:
    
    listIterator 在接口中 List<Object>
  - listIterator
```
public ListIterator<Object> listIterator(int index)
```
    指定者:
    
    listIterator 在接口中 List<Object>
  - subList
```
public List<Object> subList(int fromIndex,
                   int toIndex)
```
    指定者:
    
    subList 在接口中 List<Object>

类 JSONArray

构造器概要

方法概要

从类继承的方法 com.xiaoleilu.hutool.json.JSONGetter

从类继承的方法 com.xiaoleilu.hutool.getter.OptNullBasicTypeFromObjectGetter

从类继承的方法 com.xiaoleilu.hutool.getter.OptNullBasicTypeGetter

从类继承的方法 java.lang.Object

从接口继承的方法 java.util.List

构造器详细资料

JSONArray

JSONArray

JSONArray

JSONArray

方法详细资料

isNull

join

get

getObj

put

put

equals

toJSONObject

toString

toJSONString

write

write

iterator

size

isEmpty

contains

toArray

toArray

add

remove

remove

containsAll

addAll

addAll

removeAll

retainAll

clear

set

add

indexOf

lastIndexOf

listIterator

listIterator

subList