java基础运算易错点

第一题
int x = 1,y = 1;


if(x++==2 & ++y==2)
{
x =7;
}
System.out.println("x="+x+",y="+y);  

//x=2 y=2
---------------------------------------------------
第二题
int x = 1,y = 1;


if(x++==2 && ++y==2)
{
x =7;
}
System.out.println("x="+x+",y="+y);

//x=2 y = 1
---------------------------------------------------
第三题
int x = 1,y = 1;


if(x++==1 | ++y==1) 
{
x =7;
}
System.out.println("x="+x+",y="+y);


//x = 7 y = 2
---------------------------------------------------
第四题
int x = 1,y = 1;


if(x++==1 || ++y==1) 
{
x =7;
}
System.out.println("x="+x+",y="+y);


//x = 7 y = 1