Java中的 PrintStream print(boolean) 方法和示例
Java中PrintStream类的print(boolean)方法用于在流上打印指定的布尔值。这个布尔值被当作一个参数。
句法:
public void print(boolean booleanValue)
参数:此方法接受一个强制参数booleanValue ,它是要写入流的布尔值。
返回值:此方法不返回任何值。
下面的方法说明了 print(boolean) 方法的工作:
方案一:
// Java program to demonstrate
// PrintStream print(boolean) 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 boolean value 'true'
// to this stream using print() method
// This will put the booleanValue in the
// stream till it is printed on the console
stream.print(true);
stream.flush();
}
catch (Exception e) {
System.out.println(e);
}
}
}
输出:
true
方案二:
// Java program to demonstrate
// PrintStream print(boolean) 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 boolean value 'false'
// to this stream using print() method
// This will put the booleanValue in the
// stream till it is printed on the console
stream.print(false);
stream.flush();
}
catch (Exception e) {
System.out.println(e);
}
}
}
输出:
false