close()方法是java.util.Formatter的内置方法,它将关闭格式化程序。如果它已经关闭,则将无效。关闭它意味着它将释放它已经拥有的资源。
用法:
public void close()
参数:该函数不接受任何参数。
返回值:该函数不返回任何内容,仅关闭格式化程序。因此,返回类型为void。
下面是上述函数的实现:
示例1:
// Java program to implement
// the above function
import java.util.Formatter;
import java.util.Locale;
public class Main {
public static void main(String[] args)
{
// Get the string Buffer
StringBuffer buffer = new StringBuffer();
// Object creation
Formatter frmt
= new Formatter(buffer,
Locale.CANADA);
// Format a new string
String name = "My name is Gopal Dave";
frmt.format("What is your name? \n%s !",
name);
// Print the Formatted string
System.out.println(frmt);
// Prints the formatted string
// again since it is not closed
System.out.println(frmt);
// close the frmt
frmt.close();
}
}
输出:
What is your name? My name is Gopal Dave ! What is your name? My name is Gopal Dave !
示例2:
// Java program to implement
// the above function
import java.util.Formatter;
import java.util.Locale;
public class Main {
public static void main(String[] args)
{
// Get the string Buffer
StringBuffer buffer
= new StringBuffer();
// Object creation
Formatter frmt
= new Formatter(buffer,
Locale.CANADA);
// Format a new string
String name = "Java programs are fun";
frmt.format("%s !", name);
System.out.println(frmt);
// close the frmt
frmt.close();
}
}
输出:
Java programs are fun !
参考: https://docs.oracle.com/javase/10/docs/api/java/util/Formatter.html#close()
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注:本文由纯净天空筛选整理自gopaldave大神的英文原创作品 Formatter close() method in Java with Examples。非经特殊声明,原始代码版权归原作者所有,本译文未经允许或授权,请勿转载或复制。