如何选择数组中的五个最大值并将它们放入一个新数组中？

Question

如何选择数组中的五个最大值并将它们放在一个新数组中？

int[] a = { 1, 2, 5, 2, 4, 6, 8, 9, 1, 19 };
int[] largestValues = new int[5];

for (int i=0; i < 5; i++ ) {
    System.out.println(largestValues[i]);
}

Answer 1

您可以使用以下代码

对于例如。

NSString *proxyHost = @"192.168.xx.xxx";
NSNumber *proxyPort = [NSNumber numberWithInteger:8090];
NSString *request = [NSString stringWithFormat:
                     @"http://example.com/sampleid?id=506"];

NSURL *URL = [NSURL URLWithString:
              [request stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]];


NSURL *url = [NSURL URLWithString:[request stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]];

NSURLRequest *URLrequest = [NSURLRequest requestWithURL:url];

NSDictionary *proxyDict = @{
                            @"HTTPEnable"  : [NSNumber numberWithInt:1],
                            (NSString *)kCFStreamPropertyHTTPProxyHost  : proxyHost,
                            (NSString *)kCFStreamPropertyHTTPProxyPort  : proxyPort,
                            (NSString *)kCFProxyUsernameKey : hostUserName,
                            (NSString *)kCFProxyPasswordKey : hostPassword,

                            @"HTTPSEnable" : [NSNumber numberWithInt:1],
                            (NSString *)kCFStreamPropertyHTTPSProxyHost : proxyHost,
                            (NSString *)kCFStreamPropertyHTTPSProxyPort : proxyPort,
                            (NSString *)kCFProxyUsernameKey : hostUserName,
                            (NSString *)kCFProxyPasswordKey : hostPassword,
                            };

NSURLSessionConfiguration *sessionConfig = [NSURLSessionConfiguration defaultSessionConfiguration];
sessionConfig.connectionProxyDictionary = proxyDict;

NSURLSession *defaultSession = [NSURLSession sessionWithConfiguration: sessionConfig delegate: nil delegateQueue: [NSOperationQueue mainQueue]];

__block NSDictionary *returnJsonDictionary;
__block NSError *error1;

NSURLSessionDataTask *task = [defaultSession dataTaskWithRequest:URLrequest completionHandler:
                              ^(NSData *data, NSURLResponse *response, NSError *error) {
                                  NSLog(@"NSURLSession got the response [%@]", response);
                                  NSLog(@"NSURLSession got the data [%@]", data);
}];
[task resume];