Java中如何读取Txt中的数据存为一维数组，以逗号隔开，并且不知道数据的个数

数据：342.6, 759.6, 930.9, 502.1, 884.6, 396.9, 182.6, 628.2, 163.4, 751.2, 893.4, 737.1, 652.2, 15.2, 341, 715.4, 312.4, 300.2, 534.6, 524.7, 50.8, 415.6, 23.7, 142.4, 402.3, 471.6, 174.5, 386.2, 616, 276.1, 525, 914.9, 114.6, 120.2, 547.4, 45.3, 817.2, 213.5, 398.3, 620.3, 300.7, 906, 251.8, 65.7, 433.1, 422.9, 85.5, 752.5, 261.8, 223.8, 648.6, 29.1, 25.2, 258.7, 315.3, 357.8, 803, 926.6, 547.2, 145.1, 569.4, 798.5, 692.5, 983.9, 423.1, 195.1, 483, 248.5, 94.1, 291.3, 283.2, 389.8, 35.5, 386.6, 958.9, 860.7, 71.9, 61.9, 534.5, 600.2, 48.5, 632.8, 304.7, 790.7, 896.7, 993.7, 126.2, 903.8, 270.2, 422.9, 597.1, 546.7, 938.8, 890.5, 148.5, 29.9, 238.2, 176.5, 468.8, 828.5.
希望存为一维数组，小白一个，恳请大佬指导