Question

用JAVA语言写一个完整的程序使用循环结构计算1+3+5+…+99的和并输出运算结果。

请救各位大侠

Answer 1

class Sum{
public static void main(String args[]){
int i, sum = 0;
for(i = 1; i < 100; i=i+2)
sum = sum + i;
System.out.println("sum = "+ sum);
}
}

Answer 2

public class nest{
public static void main(String[] arges){
int j=0;
for(int i=1;i<100;i++){
if((i%2)==0){
j=j+i;
}
}
System.out.println(j);
}
}

Answer 3

import java.*;
import java.lang.*;
public class Sum {
public static void main(String [] args){
int i;
int sum = 0;
for (i = 1; i < 100; i+=2){
sum += i;
}
System.out.println(sum);
}
}

Answer 4

public class Test{
public static void main(String args[]){
int sum=0;
for(int i=1;i<100;i+=2){
sum+i;
}
System.out.println("Result is "+sum);
}
}