Short circuit and &, short circuit or |, logic and &, logic or |; Conditional operator

1. Short circuit and && And logic and &：

&& The law of operation ： Only when && The expressions on both sides are true,&& The result of operation is true

public static void main(String[] args) {
		        // true && true-->true
				boolean result1 = true && true;
				System.out.println("true&&true:" + result1);// true&&true:true

				// true && false-->true
				boolean result2 = true && false;
				System.out.println("true&&false:" + result2);// true&&false:false

				// false && true-->true
				boolean result3 = false && true;
				System.out.println("false&&true:" + result3);// false&&true:false

				// fasle && fasle-->false
				boolean result4 = false && false;
				System.out.println("false&&false:" + result4);// false&&false:false
}

& The law of operation ： Only when & The expressions on both sides are true,& The result of operation is true

public static void main(String[] args) {

				// true & true-->true
				boolean result5 = true & true;
				System.out.println("true&true:" + result5);// true&true:true

				// true & false-->true
				boolean result6 = true & false;
				System.out.println("true&false:" + result6);// true&false:false

				// false & true-->true
				boolean result7 = false & true;
				System.out.println("false&true:" + result7);// false&true:false

				// fasle & fasle-->true
				boolean result8 = false & false;
				System.out.println("false&false:" + result8);// false&false:false
	}

&& and & The difference between ：
        && Short circuit function , When && The expression on the left is false When , Directly judge the whole && The result of operation is false,&& The right side is no longer calculated
   & No short circuit function , No matter & The result of the expression on the left is true still false,& The expressions on the right have to be evaluated  

2. Short circuit or || And logic or | ：

|| The law of operation ： as long as || One on the left and right is true,|| The result of operation is true

public static void main(String[] args) {
		// true || true-->true
				boolean result1 = true || true;
				System.out.println("true||true:" + result1);// true||true:true

				// true || false-->true
				boolean result2 = true || false;
				System.out.println("true||false:" + result2);// true||false:true

				// false || true-->true
				boolean result3 = false || true;
				System.out.println("false||true:" + result3);// false||true:true

				// fasle || fasle-->false
				boolean result4 = false || false;
				System.out.println("false||false:" + result4);// false||false:false
				

	}

 | The law of operation ： as long as | One on the left and right is true,| The result of operation is true

public static void main(String[] args) {
		
				// true | true-->true
				boolean result5 = true | true;
				System.out.println("true|true:" + result5);// true|true:true

				// true | false-->true
				boolean result6 = true | false;
				System.out.println("true|false:" + result6);// true|false:true

				// false | true-->true
				boolean result7 = false | true;
				System.out.println("false|true:" + result7);// false|true:true

				// fasle | fasle-->true
				boolean result8 = false | false;
				System.out.println("false|false:" + result8);// false|false:false

	}

|| and | The difference between ：
          || Short circuit function , When || The expression on the left is true When , Directly judge the whole || The result of operation is true,|| The right side is no longer calculated
         | No short circuit function , No matter | The result of the expression on the left is true still false,| The expressions on the right have to be evaluated  

3. Conditional operator （conditional operator） Sometimes called ternary operators （ternary operator, perhaps trinary operator）, Because it's the only need 3 The operator of two operands ：

Conditions ? expression 1 : expression 2

x < 0 ? y = 10 : z = 20;

(1) If expression 1 The value of is true （ Not 0 value ）, Then the value of the expression is an expression 2 Value ;

(2) If the expression 1 The value of is false （0 value ）, Then the value of the expression is an expression 3 Value

Nested conditional operators ：
      Rule of grammar ：
      Conditions 1?( Conditions 2? expression 1: expression 2):( Conditions 3? expression 3: expression 4);
      The law of execution ：
      Conditions 1 by true, Continue to judge the conditions 2, Conditions 2 by true, Execute expression 1, Conditions 2 by false, Execute expression 2
      Conditions 1 by false, Continue to judge the conditions 3, Conditions 3 by true, Execute expression 3, Conditions 3 by false, Execute expression 4
        

	public static void main(String[] args) {
		
		
		// obtain 3 The maximum or minimum of the number 
		int a = 10;
		int b = 30;
		int c = 20;
		
		int max =a>b?(a>c?a:c):(b>c?b:c);
		System.out.println(" Maximum ："+max);
		
		int min = a>b?(b>c?c:b):(a>c?c:a);
		System.out.println(" minimum value ："+min);
	}