Java String isEmpty() Utility Method - Check String is Empty or Null

This page contains the source code of the Java String isEmpty() utility method - This method checks if a CharSequence or String is empty ("") or null.

Java String isEmpty() Utility Method

The following String isEmpty() utility method checks if a CharSequence or String is empty ("") or null:

public static boolean isEmpty(final CharSequence cs) { return cs == null || cs.length() == 0; }
JUnit test case for the above method:
@Test public void isEmptyTest() { assertTrue(isEmpty(null)); assertTrue(isEmpty("")); assertFalse(isEmpty(" ")); assertFalse(isEmpty("bob")); assertFalse(isEmpty(" bob ")); }

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