Creating a bash shell in java. HELP!

[vik_2010]

[]

[FreshP]

As a general rule, when comparing strings use the method compareTo()

like

if(stringA.compareTo(stringB)==0)........

[vik_2010]

wow my bad.. thank you. :)

[Reiger]

In general, if you want to compare objects for equality you use the equals() method:


String str1 = "a";
Object obj2 = new Object();
if(str1.equals(obj2)) {
// this is never reached
}


compareTo() is intended for sorting objects that implement the Comparable interface (hence the integer result).

[myrtle1908]

As a general rule, when comparing strings use the method compareTo()

like

if(stringA.compareTo(stringB)==0)........

The equals() method is better for this purpose. compareTo() is useful for other reasons beyond the scope of the OPs question.

Also, the line (whilst incorrect)


input == "ls -l" || input == "ls" || input=="ls\n"

would be better served with a regular expression or if you just want to know if 'ls' is present then use indexOf().