Java中的 PrintStream println() 方法及示例
Java中PrintStream类的println()方法用于在流中换行。此方法不接受任何参数或返回任何值。
句法:
public void println()
参数:此方法不接受任何参数。
Return :此方法不返回任何值。
下面的方法说明了 println() 方法的工作:
方案一:
// Java program to demonstrate
// PrintStream println() method
import java.io.*;
class GFG {
public static void main(String[] args)
{
try {
// Create a PrintStream instance
PrintStream stream
= new PrintStream(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
stream.print("GFG");
// Break the line in the stream
// using println() method
stream.println();
stream.flush();
}
catch (Exception e) {
System.out.println(e);
}
}
}
输出:
GFG
方案二:
// Java program to demonstrate
// PrintStream println() method
import java.io.*;
class GFG {
public static void main(String[] args)
{
try {
// Create a PrintStream instance
PrintStream stream
= new PrintStream(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
stream.print(1.65);
// Break the line in the stream
// using println() method
stream.println();
stream.flush();
}
catch (Exception e) {
System.out.println(e);
}
}
}
输出:
1.65