import java.io.*;

public class Test {
	public static void main(String args[])
	{
		Integer b1 = new Integer("427");

		System.out.println("変数");
		System.out.println("   MAX_VALUE " + Integer.MAX_VALUE);
		System.out.println("   MIN_VALUE " + Integer.MIN_VALUE);

		System.out.println("数値へ変換");
		double d = b1.doubleValue();   // d = (double)b1は許されない
		int i = b1.intValue();
		System.out.println("   Integer " + b1 + " double " + d + " int " + i);

		System.out.println("int型へ変換");
		System.out.println("   文字列 427 を変換 " + Integer.parseInt("427"));
		System.out.println("   文字列 1AB を変換 " + Integer.parseInt("1ab", 16));

		System.out.println("文字列へ変換");
		System.out.println("   427 を２進文字列へ変換 " + Integer.toBinaryString(427));
		System.out.println("   427 を８進文字列へ変換 " + Integer.toOctalString(427));
		System.out.println("   427 を１６進文字列へ変換 " + Integer.toHexString(427));
		System.out.println("   " + b1 + " を文字列へ変換 " + b1.toString());
		System.out.println("   427 を文字列へ変換 " + b1.toString(427));
		System.out.println("   427 を１６進文字列へ変換 " + b1.toString(427, 16));

		System.out.println("Integerへ変換");
		System.out.println("   文字列 427 を変換 " + Integer.valueOf("427"));
		System.out.println("   文字列 1AB を変換 " + Integer.valueOf("1ab", 16));
	}
}