Enthuware

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// Switch statement without pattern matching
if (obj instanceof String) {
    String str = (String) obj;
    switch (str.charAt(0)) {
        case 'a':
            iVal = 96;
            break;
        case 'A':
            iVal = 65;
            break;
        default:
            iVal = 0;
    }
} else {
    iVal = 0;
}

// Switch statement with pattern matching
switch (obj) {
    case String value
            when value.startsWith("a") -> iVal = 96;
    case String value
            when value.startsWith("A") -> iVal = 65;
    default -> iVal = 0;
}

// Switch expression without pattern matching
if (obj instanceof String) {
    String str = (String) obj;
    iVal = switch (str.charAt(0)) {
        case 'a' -> 96;
        case 'A' -> 65;
        default -> 0;
    };
} else {
    iVal = 0;
}

// Switch expression with pattern matching
iVal = switch (obj) {
    case String value
            when value.startsWith("a") -> 96;
    case String value
            when value.startsWith("A") -> 65;
    default -> 0;
};