PrintWriter 用 Java 打印(双)方法,示例
原文:https://www . geesforgeks . org/print writer-print double-method-in-Java-with-examples/
Java 中 PrintWriter 类的 print(double) 方法用于在流上打印指定的 double 值。这个双精度值被作为一个参数。
语法:
public void print(double doubleValue)
参数:该方法接受一个强制参数双值,这是要写入流的双值。
返回值:此方法不返回值。
下面的方法说明了打印(双)的工作方法:
程序 1:
// Java program to demonstrate
// PrintWriter print(double) method
import java.io.*;
class GFG {
public static void main(String[] args)
{
try {
// Create a PrintWriter instance
PrintWriter printr
= new PrintWriter(System.out);
// Print the double value '4.5'
// to this stream using print() method
// This will put the doubleValue in the
// stream till it is printed on the console
printr.print(4.5);
printr.flush();
}
catch (Exception e) {
System.out.println(e);
}
}
}
Output:
4.5
程序 2:
// Java program to demonstrate
// PrintWriter print(double) method
import java.io.*;
class GFG {
public static void main(String[] args)
{
try {
// Create a PrintWriter instance
PrintWriter printr
= new PrintWriter(System.out);
// Print the double value '1.65'
// to this stream using print() method
// This will put the doubleValue in the
// stream till it is printed on the console
printr.print(1.65);
printr.flush();
}
catch (Exception e) {
System.out.println(e);
}
}
}
Output:
1.65
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