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cheap web site hosting If it isn't raining then you don't.All programming languages have some form of an if statement that allows you to test conditions. In the previous code we should have tested whether there actually were command line arguments before we tried to use them.All arrays have lengths and we can access that length by referencing the variable arrayname.length.
cheap web site hosting (Experienced Java programmers will note that this means that the array is an object which contains a public member variable called length.) We test the length of the args array as follows:// This is the Hello program in Java class Hello { public static void main (String args[]) { /* Now let's say hello */ System.out.print("Hello "); if (args.length > 0) { System.
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