Splitter with keyvalueseparator(char separator)方法|番石榴| Java
原文:https://www . geesforgeks . org/splitter-with keyvalueseparator char-separator-method-guava-Java/
番石榴的分割器类的with KeyValue separator(char separator)方法接受一个强制参数分割器，并使用该分割器将条目分割成键和值。
语法:
公共拆分器。带键值分隔符的映射拆分器(字符分隔符)
参数:该方法接受参数分隔符，并使用该分隔符将条目拆分为键和值。
返回值:该方法返回一个地图拆分器，它根据这个拆分器拆分条目。
注意:我们将成对的分隔符传递给这个方法。on()方法接收键和值对之间的分隔符。
下面的例子说明了番石榴的 Splitter 类的 withKeyValueSeparator()方法的实现:
例 1:
// Java code to show implementation of
// withKeyValueSeparator(char separator) method
// of Guava's Splitter Class
import com.google.common.base.Splitter;
import java.util.Map;
import java.util.Map.Entry;
class GFG {
// Driver's code
public static void main(String[] args)
{
// This String contains key-value pairs.
String value
= "Data Structures=Coding,Sports=Football,Capital=Delhi";
// Using Splitter to parse key-value separators.
// This returns a MapSplitter which splits
// entries based on this splitter, and splits
// entries into keys and
// values using the specified separator.
Map<String, String>
mp
= Splitter.on(',')
.withKeyValueSeparator('=')
.split(value);
// Looping over entries stored in map mp.
for (Entry<String, String> entry : mp.entrySet()) {
// Displaying key and value pairs
System.out.println(entry.getKey() + " -> "
+ entry.getValue());
}
}
}
Output:
Data Structures -> Coding
Sports -> Football
Capital -> Delhi
例 2:
// Java code to show implementation of
// withKeyValueSeparator(char separator) method
// of Guava's Splitter Class
import com.google.common.base.Splitter;
import java.util.Map;
import java.util.Map.Entry;
class GFG {
// Driver's code
public static void main(String[] args)
{
// This String contains key-value pairs.
String value
= "First=I.Second=II.Third=III.Fourth=IV";
// Using Splitter to parse key-value separators.
// This returns a MapSplitter which splits
// entries based on this splitter, and splits
// entries into keys and values
// using the specified separator.
Map<String, String>
mp
= Splitter.on('.')
.withKeyValueSeparator('=')
.split(value);
// Looping over entries stored in map mp.
for (Entry<String, String> entry : mp.entrySet()) {
// Displaying key and value pairs
System.out.println(entry.getKey() + " -> "
+ entry.getValue());
}
}
}
Output:
First -> I
Second -> II
Third -> III
Fourth -> IV
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