Contents

import java.util.Arrays;

public class Hexadecimal {
    private static final String HEXES = "0123456789abcdef";
    public static int toDecimal(String input){
        boolean  isHex = input.matches("^[0-9a-f]+");
        if (!isHex) return 0;
        return Arrays.stream(input.split(""))
                .map(HEXES::indexOf)
                .reduce(0, (decimal, hex) -> decimal * 16 + hex);

    }
}

Version data entries

290 entries across 290 versions & 1 rubygems

Version	Path
trackler-2.2.1.72	tracks/java/exercises/hexadecimal/.meta/src/reference/java/Hexadecimal.java
trackler-2.2.1.71	tracks/java/exercises/hexadecimal/.meta/src/reference/java/Hexadecimal.java
trackler-2.2.1.70	tracks/java/exercises/hexadecimal/.meta/src/reference/java/Hexadecimal.java
trackler-2.2.1.69	tracks/java/exercises/hexadecimal/.meta/src/reference/java/Hexadecimal.java
trackler-2.2.1.68	tracks/java/exercises/hexadecimal/.meta/src/reference/java/Hexadecimal.java
trackler-2.2.1.67	tracks/java/exercises/hexadecimal/.meta/src/reference/java/Hexadecimal.java
trackler-2.2.1.66	tracks/java/exercises/hexadecimal/.meta/src/reference/java/Hexadecimal.java
trackler-2.2.1.65	tracks/java/exercises/hexadecimal/.meta/src/reference/java/Hexadecimal.java
trackler-2.2.1.64	tracks/java/exercises/hexadecimal/.meta/src/reference/java/Hexadecimal.java
trackler-2.2.1.63	tracks/java/exercises/hexadecimal/.meta/src/reference/java/Hexadecimal.java
trackler-2.2.1.62	tracks/java/exercises/hexadecimal/.meta/src/reference/java/Hexadecimal.java
trackler-2.2.1.61	tracks/java/exercises/hexadecimal/.meta/src/reference/java/Hexadecimal.java
trackler-2.2.1.60	tracks/java/exercises/hexadecimal/.meta/src/reference/java/Hexadecimal.java
trackler-2.2.1.59	tracks/java/exercises/hexadecimal/.meta/src/reference/java/Hexadecimal.java
trackler-2.2.1.58	tracks/java/exercises/hexadecimal/.meta/src/reference/java/Hexadecimal.java
trackler-2.2.1.57	tracks/java/exercises/hexadecimal/.meta/src/reference/java/Hexadecimal.java
trackler-2.2.1.56	tracks/java/exercises/hexadecimal/.meta/src/reference/java/Hexadecimal.java
trackler-2.2.1.55	tracks/java/exercises/hexadecimal/.meta/src/reference/java/Hexadecimal.java
trackler-2.2.1.54	tracks/java/exercises/hexadecimal/.meta/src/reference/java/Hexadecimal.java
trackler-2.2.1.53	tracks/java/exercises/hexadecimal/.meta/src/reference/java/Hexadecimal.java