有谁能够帮我?我需要编写一个程序,其中我有10个元素arraylist,我需要找到它有多少重复值,并计算和显示值.
例如:说我有
list = {"stack", "overflow", "stack",
"yahoo", "google", "msn",
"MSN", "stack", "overflow", "user" }
Run Code Online (Sandbox Code Playgroud)
结果应该是:
stack = 3
overflow = 2
google = 1
msn = 2
yahoo =1
user = 1
Run Code Online (Sandbox Code Playgroud)