Java 中的 PrintWriter println()方法，带示例
原文:https://www . geesforgeks . org/print writer-println-method-in-Java-with-examples/
Java 中 PrintWriter 类的 println() 方法用来打断流中的线。此方法不接受任何参数或返回任何值。
语法:
public void println()
参数:该方法不接受任何参数。
返回:此方法不返回任何值。
下面的方法说明了 println()方法的工作原理:
程序 1:
// Java program to demonstrate
// PrintWriter println() method
import java.io.*;
class GFG {
public static void main(String[] args)
{
try {
// Create a PrintWriter instance
PrintWriter writer
= new PrintWriter(System.out);
// Print the value 'GFG'
// to this stream using print() method
// This will put the in the
// stream till it is printed on the console
writer.print("GFG");
// Break the line in the stream
// using println() method
writer.println();
writer.flush();
}
catch (Exception e) {
System.out.println(e);
}
}
}
Output:
GFG
程序 2:
// Java program to demonstrate
// PrintWriter println() method
import java.io.*;
class GFG {
public static void main(String[] args)
{
try {
// Create a PrintWriter instance
PrintWriter writer
= new PrintWriter(System.out);
// Print the value '1.65'
// to this stream using print() method
// This will put the in the
// stream till it is printed on the console
writer.print(1.65);
// Break the line in the stream
// using println() method
writer.println();
writer.flush();
}
catch (Exception e) {
System.out.println(e);
}
}
}
Output:
1.65
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