1 public class Main { 2 public static void main(String[] args) { 3 test_printNarrowing(); 4 } 5 6 public static void test_printNarrowing() { 7 8 System.out.println(); 9 System.out.println("Double.POSITIVE_INFINITY = " 10 + Long.toHexString(Double.doubleToRawLongBits(Double.POSITIVE_INFINITY))); 11 System.out.println("Double.NEGATIVE_INFINITY = " 12 + Long.toHexString(Double.doubleToRawLongBits(Double.NEGATIVE_INFINITY))); 13 System.out.println("Float.POSITIVE_INFINITY = " 14 + Long.toHexString(Double.doubleToRawLongBits(Float.POSITIVE_INFINITY))); 15 System.out.println("Float.NEGATIVE_INFINITY = " 16 + Long.toHexString(Double.doubleToRawLongBits(Float.NEGATIVE_INFINITY))); 17 System.out.println("Double.NaN = " 18 + Long.toHexString(Double.doubleToRawLongBits(Double.NaN))); 19 System.out.println("Float.NaN = " 20 + Long.toHexString(Double.doubleToRawLongBits(Float.NaN))); 21 double dbl2 = Double.NaN; 22 System.out.println(); 23 System.out.println("(byte) Double.NaN = " 24 + (Long.toHexString((byte)dbl2).equals("0") ? "00" : Long.toHexString((byte)dbl2) 25 .substring(6)) + " expected: 00"); 26 System.out.println("(short) Double.NaN = " 27 + (Integer.toHexString((short)dbl2).equals("0") ? "0000" : Integer.toHexString( 28 (short)dbl2).substring(4)) + " expected: 0000"); 29 System.out.println("(int) Double.NaN = " 30 + (Integer.toHexString((int)dbl2).equals("0") ? "00000000" : Integer 31 .toHexString((int)dbl2)) + " expected: 00000000"); 32 System.out.println("(long) Double.NaN = " 33 + (Long.toHexString((long)dbl2).equals("0") ? "0000000000000000" : Long 34 .toHexString((long)dbl2)) + " expected: 0000000000000000"); 35 float fl2 = Float.NaN; 36 System.out.println(); 37 System.out.println("(byte) Float.NaN = " 38 + (Long.toHexString((byte)fl2).equals("0") ? "00" : Long.toHexString((byte)fl2) 39 .substring(6)) + " expected: 00"); 40 System.out.println("(short) Float.NaN = " 41 + (Integer.toHexString((short)fl2).equals("0") ? "0000" : Integer.toHexString( 42 (short)fl2).substring(4)) + " expected: 0000"); 43 System.out.println("(int) Float.NaN = " 44 + (Integer.toHexString((int)fl2).equals("0") ? "00000000" : Integer 45 .toHexString((int)fl2)) + " expected: 00000000"); 46 System.out.println("(long) Float.NaN = " 47 + (Long.toHexString((long)fl2).equals("0") ? "0000000000000000" : Long 48 .toHexString((long)fl2)) + " expected: 0000000000000000"); 49 double dbl3 = Double.POSITIVE_INFINITY; 50 System.out.println(); 51 System.out.println("(byte) Double.POSITIVE_INFINITY = " 52 + (Integer.toHexString((byte)dbl3).equals("0") ? "00" : Integer.toHexString( 53 (byte)dbl3).substring(6)) + " expected: ff"); 54 System.out.println("(short) Double.POSITIVE_INFINITY = " 55 + (Integer.toHexString((short)dbl3).equals("0") ? "0000" : Integer.toHexString( 56 (short)dbl3).substring(4)) + " expected: ffff"); 57 System.out.println("(int) Double.POSITIVE_INFINITY = " 58 + Integer.toHexString((int)dbl3) + " expected: 7fffffff"); 59 System.out.println("(long) Double.POSITIVE_INFINITY = " + Long.toHexString((long)dbl3) 60 + " expected: 7fffffffffffffff"); 61 double dbl4 = Double.NEGATIVE_INFINITY; 62 System.out.println(); 63 System.out.println("(byte) Double.NEGATIVE_INFINITY = " 64 + (Long.toHexString((byte)dbl4).equals("0") ? " 00" : Long 65 .toHexString((byte)dbl4)) + " expected: 00"); 66 System.out.println("(short) Double.NEGATIVE_INFINITY = " 67 + (Integer.toHexString((short)dbl4).equals("0") ? " 0000" : Long 68 .toHexString((short)dbl4)) + " expected: 0000"); 69 System.out.println("(int) Double.NEGATIVE_INFINITY = " 70 + Integer.toHexString((int)dbl4) + " expected: 80000000"); 71 System.out.println("(long) Double.NEGATIVE_INFINITY = " + Long.toHexString((long)dbl4) 72 + " expected: 8000000000000000"); 73 float fl3 = Float.POSITIVE_INFINITY; 74 System.out.println(); 75 System.out.println("(byte) Float.POSITIVE_INFINITY = " 76 + (Integer.toHexString((byte)fl3).equals("0") ? "00" : Integer.toHexString( 77 (byte)fl3).substring(6)) + " expected: ff"); 78 System.out.println("(short) Float.POSITIVE_INFINITY = " 79 + (Integer.toHexString((short)fl3).equals("0") ? "0000" : Integer.toHexString( 80 (short)fl3).substring(4)) + " expected: ffff"); 81 System.out.println("(int) Float.POSITIVE_INFINITY = " 82 + Integer.toHexString((int)fl3) + " expected: 7fffffff"); 83 System.out.println("(long) Float.POSITIVE_INFINITY = " + Long.toHexString((long)fl3) 84 + " expected: 7fffffffffffffff"); 85 float fl4 = Float.NEGATIVE_INFINITY; 86 System.out.println(); 87 System.out.println("(byte) Float.NEGATIVE_INFINITY = " 88 + (Long.toHexString((byte)fl4).equals("0") ? " 00" : Long 89 .toHexString((byte)fl4)) + " expected: 00"); 90 System.out.println("(short) Float.NEGATIVE_INFINITY = " 91 + (Integer.toHexString((short)fl4).equals("0") ? " 0000" : Long 92 .toHexString((short)fl4)) + " expected: 0000"); 93 System.out.println("(int) Float.NEGATIVE_INFINITY = " 94 + Integer.toHexString((int)fl4) + " expected: 80000000"); 95 System.out.println("(long) Float.NEGATIVE_INFINITY = " + Long.toHexString((long)fl4) 96 + " expected: 8000000000000000"); 97 System.out.println(); 98 } 99 } 100
