1 // Copyright 2006 The Android Open Source Project 2 3 /** 4 * Test arithmetic operations. 5 */ 6 public class Main { 7 shiftTest1()8 static void shiftTest1() 9 { 10 final int[] mBytes = { 11 0x11, 0x22, 0x33, 0x44, 0x88, 0x99, 0xaa, 0xbb 12 }; 13 long l; 14 int i1, i2; 15 16 i1 = mBytes[0] | mBytes[1] << 8 | mBytes[2] << 16 | mBytes[3] << 24; 17 i2 = mBytes[4] | mBytes[5] << 8 | mBytes[6] << 16 | mBytes[7] << 24; 18 l = i1 | ((long)i2 << 32); 19 20 System.out.println("values are " + Integer.toHexString(i1) 21 + " and " + Integer.toHexString(i2)); 22 23 System.out.println("First l is " + Long.toHexString(l)); 24 25 l = (long)mBytes[0] 26 | (long)mBytes[1] << 8 27 | (long)mBytes[2] << 16 28 | (long)mBytes[3] << 24 29 | (long)mBytes[4] << 32 30 | (long)mBytes[5] << 40 31 | (long)mBytes[6] << 48 32 | (long)mBytes[7] << 56; 33 34 System.out.println("Second l is " + Long.toHexString(l)); 35 } 36 shiftTest2()37 static void shiftTest2() 38 { 39 long a = 0x11; 40 long b = 0x22; 41 long c = 0x33; 42 long d = 0x44; 43 long e = 0x55; 44 long f = 0x66; 45 long g = 0x77; 46 long h = 0x88; 47 48 long result = ((a << 56) | (b << 48) | (c << 40) | (d << 32) | 49 (e << 24) | (f << 16) | (g << 8) | h); 50 51 System.out.println("shiftTest2 l is " + Long.toHexString(result)); 52 } 53 convTest()54 static void convTest() 55 { 56 float f; 57 double d; 58 int i; 59 long l; 60 61 /* float --> int */ 62 f = 1234.5678f; 63 i = (int) f; 64 System.out.println("f=" + f + " --> i=" + i); 65 66 f = -1234.5678f; 67 i = (int) f; 68 System.out.println("f=" + f + " --> i=" + i); 69 70 /* double --> int */ 71 d = 1234.5678; 72 i = (int) d; 73 System.out.println("d=" + d + " --> i=" + i); 74 75 d = -1234.5678; 76 i = (int) d; 77 System.out.println("d=" + d + " --> i=" + i); 78 79 /* double --> long */ 80 d = 5678956789.0123; 81 l = (long) d; 82 System.out.println("d=" + d + " --> l=" + l); 83 84 d = -5678956789.0123; 85 l = (long) d; 86 System.out.println("d=" + d + " --> l=" + l); 87 88 /* int --> long */ 89 i = 7654; 90 l = (long) i; 91 System.out.println("i=" + i + " --> l=" + l); 92 93 i = -7654; 94 l = (long) i; 95 System.out.println("i=" + i + " --> l=" + l); 96 97 /* long --> int (with truncation) */ 98 l = 5678956789L; 99 i = (int) l; 100 System.out.println("l=" + l + " --> i=" + i); 101 102 l = -5678956789L; 103 i = (int) l; 104 System.out.println("l=" + l + " --> i=" + i); 105 106 /* int --> float */ 107 i = 1234; 108 f = (float) i; 109 System.out.println("i=" + i + " --> f=" + f); 110 111 i = -1234; 112 f = (float) i; 113 System.out.println("i=" + i + " --> f=" + f); 114 } 115 unsignedShiftTest()116 static void unsignedShiftTest() 117 { 118 byte b = -4; 119 short s = -4; 120 char c = 0xfffc; 121 int i = -4; 122 123 b >>>= 4; 124 s >>>= 4; 125 c >>>= 4; 126 i >>>= 4; 127 128 System.out.println("b=" + b + ", s=" + s + ", c=" + (int)c + ", i=" +i); 129 System.out.println("b=0x" + Integer.toHexString((int)b) 130 + ", s=0x" + Integer.toHexString((int)s) 131 + ", c=0x" + Integer.toHexString((int)c) 132 + ", i=0x" + Integer.toHexString(i)); 133 } 134 main(String[] args)135 public static void main(String[] args) { 136 convTest(); 137 shiftTest1(); 138 shiftTest2(); 139 unsignedShiftTest(); 140 } 141 } 142 143