运算符

public class TestOperator{
    public static void main(String[] args){
        /*
        //算术运算符
        int a=3;
        int b=a++;   //a++先赋值，再+1
        int c=++a;   //++a,先+1，再赋值
        System.out.println(a); //5
        System.out.println(b); //3
        System.out.println(c); //5
        */
        
        /*
        //逻辑运算符
        boolean c=1>2&&2>(3/0);
        System.out.println(c); //false
        
        boolean d=1<2&&2>(3/0);
        System.out.println(d); //ArithmeticException
        */
        
        //位运算符
        int m=8;
        int n=4;
        System.out.println(m&n);//0
        System.out.println(m|n);//12
        
        int a=3*2*2;
        int b=3<<2;
        int c=12/2/2/2;
        int d=12>>3;
        System.out.println(a);//12
        System.out.println(b);//12
        System.out.println(c);//1
        System.out.println(d);//1
        
        System.out.println(4+"5");  //45 +前后有字符串，字符串拼接
        
        //条件运算符
        int x=2;
        int y=3;
        String z=(x<y)?"x<y":"x>=y";
        System.out.println(z);    
        
    }
}