Main.java:14: error: cannot find symbol
for(a=610;a<=1;a--)
^
symbol: variable a
location: class Ideone
Main.java:14: error: cannot find symbol
for(a=610;a<=1;a--)
^
symbol: variable a
location: class Ideone
Main.java:14: error: cannot find symbol
for(a=610;a<=1;a--)
^
symbol: variable a
location: class Ideone
Main.java:16: error: cannot find symbol
sum=sum+a*(a-1);
^
symbol: variable a
location: class Ideone
Main.java:16: error: cannot find symbol
sum=sum+a*(a-1);
^
symbol: variable a
location: class Ideone
5 errors