1. 程式人生 > >1.用while,do while,for迴圈實現100以內(含100)的偶數加和

1.用while,do while,for迴圈實現100以內(含100)的偶數加和

//1.while迴圈
int i=0;
int sum=0;
while(i<=100){
i++;
if(i%2==0){
sum=sum+i;
}
}
System.out.println(“100以內偶數和為:”+sum);
}
//2.do while
int i=0;
int sum=0;
do{
i++;
if(i%2==0){
sum=sum+i;
}
}while(i<=100);
System.out.println(sum);
}
//3.for 迴圈
int sum=0;
for(int i=0;i<=100;i++){
if(i%2==0){
sum=sum+i;
}
}System.out.println(“一百以內偶數和為”+sum);
}
}