1. 1.
    0
    if(Character. isDigit(firstchar)) {
    System.out. println("isDigit");
    }
    else if(Character. isUpperCase(firstchar)) {
    System.out. println("isUpperCase");
    }
    else if(Character. isLowerCase(firstchar)) {
    System.out. println("isLowerCase");
    }

    panpa ingilizcen varsa bu siteyi kullan stackoverflow.com.
    ···
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