public?class?HelloWorld{
????public?static?void?main(String[]?args)?{
????int?one?=?10?;
????????int?two?=?20?;
????????int?three?=?0?;
????????int?three=one+two;
????????System.out.println("three="+three);
????????int?three+=one;
????????System.out.println("three="+three);
????????int?three-=one;
????????System.out.println("three="+three);
????????int?three*=one;
????????System.out.println("three="+three);
????????int?three/=one;
????????System.out.println("three="+three);
????????int?three%=one;
????????System.out.println("three="+three);
????????
????????
????????
????????
????????
????????
????????
????????
????????
????????
????????
????
}
}
2016-09-27
第5行已經(jīng)將three設(shè)為int型了，下面不需要重復(fù)定義。