[Java] 整数を１６進の文字列に変換

●整数を１６進の文字列に変換
toHexString()

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public class toHexStringDemo {
    public static void main(String args[]){

        for(int i=1; i < 40; i++){
            String s = Integer.toHexString(i);
            System.out.println(i + " " + s );
            
        }
    }
}
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