1 /* 2 * @test /nodynamiccopyright/ 3 * @bug 6860973 4 * @summary Project Coin: underscores in literals 5 * 6 * @compile/fail/ref=BadUnderscoreLiterals.7.out -XDrawDiagnostics BadUnderscoreLiterals.java 7 */ 8 9 public class BadUnderscoreLiterals { 10 int valid = 1_1; // valid literal 11 12 // test zero 13 int z1 = _0; // valid (but undefined) variable 14 int z2 = 0_; // trailing underscore 15 16 // test simple (decimal) integers 17 int i1 = _1_2_3; // valid (but undefined) variable 18 int i2 = 1_2_3_; // trailing underscore 19 20 // test binary integers 21 int b1 = 0b_0; // leading underscore after radix 22 int b2 = 0b0_; // trailing underscore 23 24 // test hexadecimal integers 25 int x1 = 0x_0; // leading underscore after radix 26 int x2 = 0x0_; // trailing underscore 27 28 // test floating point numbers 29 float f1 = 0_.1; // trailing underscore before decimal point 30 float f2 = 0._1; // leading underscore after decimal point 31 float f3 = 0.1_; // trailing underscore 32 float f4 = 0.1_e0; // trailing underscore before exponent 33 float f5 = 0e_1; // leading underscore in exponent 34 float f6 = 0e1_; // trailing underscore in exponent 35 36 // hexadecimal floating point 37 float xf1 = 0x_0.1p0; // leading underscore after radix 38 float xf2 = 0x0_.1p0; // trailing underscore before decimal point 39 float xf3 = 0x0._1p0; // leading underscore after decimal point 40 float xf4 = 0x0.1_p0; // trailing underscore before exponent 41 float xf5 = 0x0p_1; // leading underscore after exponent 42 float xf6 = 0x0p1_; // trailing underscore 43 } 44