Question

java的1+100求和的程序写法

public class ss
{
public static void main(String [] args)
{

int x=1,y=1;
for(;y<=100;y++)
{
System.out.println(x+y);

}

}

但是不对，求大侠指点
求大侠们帮助我改改上面的程序，谢谢！！！

Answer 1

public class ss
{
public static void main(String [] args)
{

int x=0,y=1;
for(;y<=100;y++)
{
x=x+y;

} System.out.println(x);

}

Answer 2

package test;

public class test1 {
public static void main(String[] args) {
int sum=0;
for(int i=1;i<=100;i++){
sum=sum+i;
}
System.out.println(sum);
}
}

Answer 3

package demo;
public class demo1 {
public static void main(String[] args) {

int j = 0;
for(int i=1;i<=100;i++){
j=i+j;
}
System.out.println(j);
}
}