Java基础之 Boolean类型logicalAnd、logicalOr和logicalXor方法解析

从Java8开始Boolean类型多了3个方法:logicalAnd、logicalOr和logicalXor,这是为了支持函数式编程添加的方法,作用其实和我们手动判断两个变量true或false是相似的。
例如:
a && b,换成Boolean类型提供的方法就是:Boolean.logicalAnd(a,b)
a || b,换成Boolean类型提供的方法就是:Boolean.logicalOr(a,b)
看源码:

public static boolean logicalAnd(boolean a, boolean b) {
	return a && b;
}

public static boolean logicalOr(boolean a, boolean b) {
	return a || b;
}	
	
public static boolean logicalXor(boolean a, boolean b) {
	return a ^ b;
}

看demo:

/**
 * logicalAnd、logicalOr和logicalXor
 */
public class BooleanTest {

    public static void main(String[] args) {
        Boolean a = new Boolean(true);
        Boolean b = new Boolean(false);
        Boolean c = new Boolean(true);
        boolean d = true;
        boolean e = false;

        System.out.println(Boolean.logicalAnd(a,b));
        System.out.println(Boolean.logicalAnd(a,c));
        /*
        false
        true
         */

        System.out.println(Boolean.logicalOr(a,b));
        System.out.println(Boolean.logicalOr(a,c));
        /*
        true
        true
         */

        System.out.println(Boolean.logicalOr(a,d));
        System.out.println(Boolean.logicalOr(a,e));
        System.out.println(Boolean.logicalOr(b,e));
        /*
        true
        true
        false
         */

        System.out.println(Boolean.logicalXor(a,d));
        System.out.println(Boolean.logicalXor(a,e));
        System.out.println(Boolean.logicalXor(b,e));
        /*
        false
        true
        false
         */

    }
}