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class Bicycle {
 
    int cadence = 0;
    int speed = 0;
    int gear = 1;
 
    void changeCadence(int newValue) {
         cadence = newValue;
    }
 
    void changeGear(int newValue) {
         gear = newValue;
    }
 
    void speedUp(int increment) {
         speed = speed + increment;   
    }
 
    void applyBrakes(int decrement) {
         speed = speed - decrement;
    }
 
    void printStates() {
         System.out.println("cadence:" +
             cadence + " speed:" + 
             speed + " gear:" + gear);
    }
}

gnatgcc -c -pipe -O2 prog.adb
prog.adb:2:01: compilation unit expected
prog.adb:8:38: illegal character, replaced by "("
prog.adb:10:05: illegal character, replaced by ")"
prog.adb:12:35: illegal character, replaced by "("
prog.adb:14:05: illegal character, replaced by ")"
prog.adb:16:33: illegal character, replaced by "("
prog.adb:18:05: illegal character, replaced by ")"
prog.adb:20:37: illegal character, replaced by "("
prog.adb:22:05: illegal character, replaced by ")"
prog.adb:24:24: illegal character, replaced by "("
prog.adb:28:05: illegal character, replaced by ")"
prog.adb:29:01: illegal character, replaced by ")"
gnatmake: "prog.adb" compilation error

Standard output is empty