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Java Formatter close()用法及代码示例


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。