public class Main { public static void main(String[] args) { test_printNarrowing(); } public static void test_printNarrowing() { System.out.println(); System.out.println("Double.POSITIVE_INFINITY = " + Long.toHexString(Double.doubleToRawLongBits(Double.POSITIVE_INFINITY))); System.out.println("Double.NEGATIVE_INFINITY = " + Long.toHexString(Double.doubleToRawLongBits(Double.NEGATIVE_INFINITY))); System.out.println("Float.POSITIVE_INFINITY = " + Long.toHexString(Double.doubleToRawLongBits(Float.POSITIVE_INFINITY))); System.out.println("Float.NEGATIVE_INFINITY = " + Long.toHexString(Double.doubleToRawLongBits(Float.NEGATIVE_INFINITY))); System.out.println("Double.NaN = " + Long.toHexString(Double.doubleToRawLongBits(Double.NaN))); System.out.println("Float.NaN = " + Long.toHexString(Double.doubleToRawLongBits(Float.NaN))); double dbl2 = Double.NaN; System.out.println(); System.out.println("(byte) Double.NaN = " + (Long.toHexString((byte)dbl2).equals("0") ? "00" : Long.toHexString((byte)dbl2) .substring(6)) + " expected: 00"); System.out.println("(short) Double.NaN = " + (Integer.toHexString((short)dbl2).equals("0") ? "0000" : Integer.toHexString( (short)dbl2).substring(4)) + " expected: 0000"); System.out.println("(int) Double.NaN = " + (Integer.toHexString((int)dbl2).equals("0") ? "00000000" : Integer .toHexString((int)dbl2)) + " expected: 00000000"); System.out.println("(long) Double.NaN = " + (Long.toHexString((long)dbl2).equals("0") ? "0000000000000000" : Long .toHexString((long)dbl2)) + " expected: 0000000000000000"); float fl2 = Float.NaN; System.out.println(); System.out.println("(byte) Float.NaN = " + (Long.toHexString((byte)fl2).equals("0") ? "00" : Long.toHexString((byte)fl2) .substring(6)) + " expected: 00"); System.out.println("(short) Float.NaN = " + (Integer.toHexString((short)fl2).equals("0") ? "0000" : Integer.toHexString( (short)fl2).substring(4)) + " expected: 0000"); System.out.println("(int) Float.NaN = " + (Integer.toHexString((int)fl2).equals("0") ? "00000000" : Integer .toHexString((int)fl2)) + " expected: 00000000"); System.out.println("(long) Float.NaN = " + (Long.toHexString((long)fl2).equals("0") ? "0000000000000000" : Long .toHexString((long)fl2)) + " expected: 0000000000000000"); double dbl3 = Double.POSITIVE_INFINITY; System.out.println(); System.out.println("(byte) Double.POSITIVE_INFINITY = " + (Integer.toHexString((byte)dbl3).equals("0") ? "00" : Integer.toHexString( (byte)dbl3).substring(6)) + " expected: ff"); System.out.println("(short) Double.POSITIVE_INFINITY = " + (Integer.toHexString((short)dbl3).equals("0") ? "0000" : Integer.toHexString( (short)dbl3).substring(4)) + " expected: ffff"); System.out.println("(int) Double.POSITIVE_INFINITY = " + Integer.toHexString((int)dbl3) + " expected: 7fffffff"); System.out.println("(long) Double.POSITIVE_INFINITY = " + Long.toHexString((long)dbl3) + " expected: 7fffffffffffffff"); double dbl4 = Double.NEGATIVE_INFINITY; System.out.println(); System.out.println("(byte) Double.NEGATIVE_INFINITY = " + (Long.toHexString((byte)dbl4).equals("0") ? " 00" : Long .toHexString((byte)dbl4)) + " expected: 00"); System.out.println("(short) Double.NEGATIVE_INFINITY = " + (Integer.toHexString((short)dbl4).equals("0") ? " 0000" : Long .toHexString((short)dbl4)) + " expected: 0000"); System.out.println("(int) Double.NEGATIVE_INFINITY = " + Integer.toHexString((int)dbl4) + " expected: 80000000"); System.out.println("(long) Double.NEGATIVE_INFINITY = " + Long.toHexString((long)dbl4) + " expected: 8000000000000000"); float fl3 = Float.POSITIVE_INFINITY; System.out.println(); System.out.println("(byte) Float.POSITIVE_INFINITY = " + (Integer.toHexString((byte)fl3).equals("0") ? "00" : Integer.toHexString( (byte)fl3).substring(6)) + " expected: ff"); System.out.println("(short) Float.POSITIVE_INFINITY = " + (Integer.toHexString((short)fl3).equals("0") ? "0000" : Integer.toHexString( (short)fl3).substring(4)) + " expected: ffff"); System.out.println("(int) Float.POSITIVE_INFINITY = " + Integer.toHexString((int)fl3) + " expected: 7fffffff"); System.out.println("(long) Float.POSITIVE_INFINITY = " + Long.toHexString((long)fl3) + " expected: 7fffffffffffffff"); float fl4 = Float.NEGATIVE_INFINITY; System.out.println(); System.out.println("(byte) Float.NEGATIVE_INFINITY = " + (Long.toHexString((byte)fl4).equals("0") ? " 00" : Long .toHexString((byte)fl4)) + " expected: 00"); System.out.println("(short) Float.NEGATIVE_INFINITY = " + (Integer.toHexString((short)fl4).equals("0") ? " 0000" : Long .toHexString((short)fl4)) + " expected: 0000"); System.out.println("(int) Float.NEGATIVE_INFINITY = " + Integer.toHexString((int)fl4) + " expected: 80000000"); System.out.println("(long) Float.NEGATIVE_INFINITY = " + Long.toHexString((long)fl4) + " expected: 8000000000000000"); System.out.println(); } }