==== 7.5.33 iconst_ ==== Push int constant Format iconst_ Forms iconst_m1 = 10 (0x09) iconst_0 = 11 (0xa) iconst_1 = 12 (0xb) iconst_2 = 13 (0xc) iconst_3 = 14 (0xd) iconst_4 = 15 (0xe) iconst_5 = 16 (0xf) Stack ... -> ..., .word1, .word2 Description Push the int constant (-1, 0, 1, 2, 3, 4, or 5) onto the operand stack. Notes If a virtual machine does not support the int data type, the iconst_ instruction will not be available.