StateUtil.cls

public class StateUtil {
    Map<String,String> stateMap = new Map<String,String>();
    
    public StateUtil(){
        stateMap.put('Alabama','AL');
        stateMap.put('Alaska','AK');
        stateMap.put('Arizona','AZ');
        stateMap.put('Arkansas','AR');
        stateMap.put('California','CA');
        stateMap.put('Colorado','CO');
        stateMap.put('Connecticut','CT');
        stateMap.put('Delaware','DE');
        stateMap.put('Florida','FL');
        stateMap.put('Georgia','GA');
        stateMap.put('Hawaii','HI');
        stateMap.put('Idaho','ID');
        stateMap.put('Illinois','IL');
        stateMap.put('Indiana','IN');
        stateMap.put('Iowa','IA');
        stateMap.put('Kansas','KS');
        stateMap.put('Kentucky','KY');
        stateMap.put('Louisiana','LA');
        stateMap.put('Maine','ME');
        stateMap.put('Maryland','MD');
        stateMap.put('Massachusetts','MA');
        stateMap.put('Michigan','MI');
        stateMap.put('Minnesota','MN');
        stateMap.put('Mississippi','MS');
        stateMap.put('Missouri','MO');
        stateMap.put('Montana','MT');
        stateMap.put('Nebraska','NE');
        stateMap.put('Nevada','NV');
        stateMap.put('New Hampshire','NH');
        stateMap.put('New Jersey','NJ');
        stateMap.put('New Mexico','NM');
        stateMap.put('New York','NY');
        stateMap.put('North Carolina','NC');
        stateMap.put('North Dakota','ND');
        stateMap.put('Ohio','OH');
        stateMap.put('Oklahoma','OK');
        stateMap.put('Oregon','OR');
        stateMap.put('Pennsylvania','PA');
        stateMap.put('Rhode Island','RI');
        stateMap.put('South Carolina','SC');
        stateMap.put('South Dakota','SD');
        stateMap.put('Tennessee','TN');
        stateMap.put('Texas','TX');
        stateMap.put('Utah','UT');
        stateMap.put('Vermont','VT');
        stateMap.put('Virginia','VA');
        stateMap.put('Washington','WA');
        stateMap.put('West Virginia','WV');
        stateMap.put('Wisconsin','WI');
        stateMap.put('Wyoming','WY');
    }
    
    public String getCode(String state) {
        return stateMap.get(state);
    }

}