计算1-100的和class Count02{ public int getSum(){ int sum=0;//用于收集1-100的值 for (int i=1;i<=100;i++){ sum+=i; } return sum; }}public class Method_Exer02 { public static void main(String[] args) { Count02 c=new Count02(); //调用函数，计算和 int sum=c.getSum(); System.out.println("1-100的和是："+sum); }}