text: Segregate 0 s and 1 s in an array | Java code to segregate 0 and 1 ; * Method for segregation 0 and 1 given input array ; Driver program
code: import java . util . * ; class GFG { static void segregate0and1 ( int arr [ ] ) { int type0 = 0 ; int type1 = arr . length - 1 ; while ( type0 < type1 ) { if ( arr [ type0 ] == 1 ) { arr [ type1 ] = arr [ type1 ] + arr [ type0 ] ; arr [ type0 ] = arr [ type1 ] - arr [ type0 ] ; arr [ type1 ] = arr [ type1 ] - arr [ type0 ] ; type1 -- ; } else { type0 ++ ; } } } public static void main ( String [ ] args ) { int [ ] array = { 0 , 1 , 0 , 1 , 1 , 1 } ; segregate0and1 ( array ) ; for ( int a : array ) { System . out . print ( a + " ▁ " ) ; } } }