Java String to owercase()带示例
原文:https://www . geesforgeks . org/Java-string-tolowercase-examples/
java 字符串 toLowerCase() 方法将字符串的所有字符转换为小写字母。有两种类型的 toLowerCase() 方法。
签名:
public String toLowerCase(Locale loc)
and
public String toLowerCase()
Parameter:
loc- locale value to be applied. converts all the characters into
lowercase using the rules of given Locale.
Returns: returns string in lowercase letter.
// Java program to demonstrate
// working of toLowerCase() method
class Gfg {
public static void main(String args[])
{
String s = "Welcome! to Geeksforgeeks Planet.";
// converting string s to lowercase letter
String gfg1 = s.toLowerCase();
System.out.println(gfg1);
}
}
输出:
welcome! to geeksforgeeks planet.
// Java program to demonstrate
// working of Locale class in
// toLowerCase() method
import java.util.Locale;
class Gfg {
public static void main(String args[])
{
String s = "I Know YOI Bui You Don't Know ME.";
// Locales with the language "tr" for TURKISH
//"en" for ENGLISH is created
Locale TURKISH = Locale.forLanguageTag("tr");
Locale ENGLISH = Locale.forLanguageTag("en");
// converting string s to lowercase letter
// using TURKISH and ENGLISH language
String gfg2 = s.toLowerCase(TURKISH);
String gfg3 = s.toLowerCase(ENGLISH);
System.out.println(gfg2);
System.out.println(gfg3);
}
}
输出:
? know yo? bui you don't know me.
i know yoi bui you don't know me.
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