java 编程 计算1-100的偶数平方和。怎么做？

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

public static void gogo(){
int count=0;
for(int i=1;i<=100;i++){
if(i%2==0){
count = count+i*i;
}
}
System.out.println(count);
}

public class t {
public static void main(String[] argv) {
int sum = 0;
for(int i =2; i<=100; i+=2){
sum +=i*i;
}
System.out.println(sum);
}
}