while循环详解

package zaiyang.struct;

public class WhileDemo01 {
    public static void main(String[] args) {
        //输出1~100

        int i = 0;

        while (i<100){
            i++;
            System.out.println(i);
        }


    }
}

package zaiyang.struct;

public class WhileDemo02 {
    public static void main(String[] args) {
        //计算1+2+3+4+...+100=?

        int i = 0;
        int sum = 0;

        while (i<=100){
            sum = sum + i;
            i++;
        }
        System.out.println(sum);
    }
}