我试图在varag中统一lambdas和简单的值.
public static void Log(String format, Object ... args) {
final Object[] fmt = new Object[ args.length ];
for(int i = 0; i < args.length; i++)
fmt[i] = args[i] instanceof Supplier ?
( (Supplier) args[i] ).get() :
args[i];
final String s = String.format( format, fmt );
System.err.println( s );
}
final Supplier
s = () -> "aaa",
d = () -> 111;
Log( "%s %d %s %d", "bbb", 222, s, d ); // OK, OUTPUT: bbb 222 aaa 111
Log( …Run Code Online (Sandbox Code Playgroud)