运算符

public class hello {
    /**
     * 
     */

    public static void main(String[] args) {
//求模
        System.out.println("20 % 7 = " +( 20 % 7));
        
        int z = 10;
        
        z++;//z=z+1
        
        System.out.println("z =" +z);
        
        System.out.println("z=" +z++);//先赋值再++
        
        System.out.println("z =" + ++z);//先++再赋值
        
        z--;    //z=z-1
        
        System.out.println("z =" +z);//System.out.println("z=" +z--);
        
        //System.out.println("z=" + --z);
        
        z=10;
        
        int k=z++;
        
        z += 2;//z=z+2
        
        z -= 2;//z=z-2
        
        z *= 2;//z=z*2
        
        z /= 2;//z=z/2
        
        z %= 2;//z=z%2
        
        boolean luoji = true && true;
        
        System.out.println("true && true =" + luoji);
        
        luoji = true & false;
        
        System.out.println("true && false =" + luoji);
        
        luoji = false & false;
        
        System.out.println("false & false =" + luoji);
        
        luoji = ( 2 < 1 && 3 < 4);//“&&”是短路写法只要前面是false后面就不用算了，“&”要继续往后算
        
        luoji = true || true;
        
        System.out.println("true || true =" + luoji);
        
        luoji = true || false;
        
        System.out.println("true || false =" + luoji);
        
        luoji = false || false;
        
        System.out.println("false || false =" + luoji);
        
        luoji = ( 2 > 1 || 3 < 4);
        
        luoji = !( 2 > 1 || 3 < 4);//反转
        
        int p = 2 > 1 ? 1:2;
        
        System.out.println("p =" +p);
        
        String str =4>5 ? "asd" : "das";
        
        int o = ((2 + 1)*(4 - 3));
        
        
        
        
        
        System.out.println("k =" +k);        
        
        System.out.println("z =" +z);
        
        
        System.out.println("10 > 9 =" + (10>9));
        



        System.out.println("10 != 9 =" + (‘c‘ != ‘b‘));
// TODO 自动生成的方法存根

    }

}