boolean.java

Java 程序设计源码 只提供了部分

//demonstrate boolean values
class boolleandemo
{
	public static void main(String[] args)
	{
		boolean b = false;
		
		System.out.println("b is " + b);
		
		b = true;
		
		System.out.println("b is " + b);
		
		//a boolean value can control the if statement
		if(b) System.out.println("This is executed");
		
		b = false;
		
		if(b) System.out.println("This is not executed");
		
		//outcome of a relational optator is a boolean value
		System.out.println("10 > 9 is " + (10 > 9));
	}
}