作者：顺佳海外 | 来源：互联网 | 2023-10-12 17:05
Java 中的 Formatter out()方法，示例
原文:https://www . geesforgeks . org/formatter-out-method-in-Java-with-examples/
out() 方法是 java.util.Formatter 的内置方法，它返回格式化程序输出的目的地。
语法 :
参数:该功能不接受参数。
返回值:该函数返回输出的目的地。
异常:如果在函数调用之前格式化程序已经关闭，函数抛出格式化程序关闭异常。
下面是上述功能的实现:
程序 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 destination of the output
System.out.println("\nDestination: "
+ frmt.out());
}
}
输出:
What is your name?
My name is Gopal Dave !
Destination: What is your name?
My name is Gopal Dave !
程序二:
// Java program to implement
// the above function
import java.util.Formatter;
import java.util.Locale;
public class Main {
public static void main(String[] args)
{
try {
// 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);
// Formatter closed
frmt.close();
// Prints the destination of the output
System.out.println("\nDestination: "
+ frmt.out());
}
catch (Exception e) {
System.out.println("Exception is: "
+ e);
}
}
}
输出:
What is your name?
My name is Gopal Dave !
Exception is: java.util.FormatterClosedException
参考:https://docs . Oracle . com/javase/10/docs/API/Java/util/formatter . html # out()
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