openjdk 1.7 in eclipse: operator is not allowed for source level below 1.7

Question

Eclipse gives me an error:

\'<>\' operator is not allowed for source level below 1.7 

I guess this is because it is not using java 1

Answer 1

Right-click on the project. Choose Properties. Choose Java Compiler on the left. Choose 1.7 for the Compiler Compliance level. If the 2 drop-downs below that aren't 1.7, uncheck Use default compliance settings and set those to 1.7.

Answer 2

If you want to use below version, use

Map<String, Integer> map = new HashMap<String, Integer>();

instead of

HashMap<String, Integer> map = new HashMap<>();