| /* |
| * @test /nodynamiccopyright/ |
| * @bug 6860973 |
| * @summary Project Coin: underscores in literals |
| * |
| * @compile/fail/ref=BadUnderscoreLiterals.7.out -XDrawDiagnostics BadUnderscoreLiterals.java |
| * @compile/fail/ref=BadUnderscoreLiterals.6.out -XDrawDiagnostics -source 6 -Xlint:-options BadUnderscoreLiterals.java |
| */ |
| |
| public class BadUnderscoreLiterals { |
| int valid = 1_1; // valid literal; illegal in -source 6 |
| |
| // test zero |
| int z1 = _0; // valid (but undefined) variable |
| int z2 = 0_; // trailing underscore |
| |
| // test simple (decimal) integers |
| int i1 = _1_2_3; // valid (but undefined) variable |
| int i2 = 1_2_3_; // trailing underscore |
| |
| // test binary integers |
| int b1 = 0b_0; // leading underscore after radix |
| int b2 = 0b0_; // trailing underscore |
| |
| // test hexadecimal integers |
| int x1 = 0x_0; // leading underscore after radix |
| int x2 = 0x0_; // trailing underscore |
| |
| // test floating point numbers |
| float f1 = 0_.1; // trailing underscore before decimal point |
| float f2 = 0._1; // leading underscore after decimal point |
| float f3 = 0.1_; // trailing underscore |
| float f4 = 0.1_e0; // trailing underscore before exponent |
| float f5 = 0e_1; // leading underscore in exponent |
| float f6 = 0e1_; // trailing underscore in exponent |
| |
| // hexadecimal floating point |
| float xf1 = 0x_0.1p0; // leading underscore after radix |
| float xf2 = 0x0_.1p0; // trailing underscore before decimal point |
| float xf3 = 0x0._1p0; // leading underscore after decimal point |
| float xf4 = 0x0.1_p0; // trailing underscore before exponent |
| float xf5 = 0x0p_1; // leading underscore after exponent |
| float xf6 = 0x0p1_; // trailing underscore |
| } |
| |