JAVA IDENTIFIERS

total payment

• valid

• invalid

i = i + 1 ;

• valid

• invalid

Scanner = Scanner + 3 ;

• valid

• invalid

int name :

• valid

• invalid

int avg = total / 7 ;

• valid

• invalid

if ( mark greater than 70 )

• valid

• invalid

while ( counter <= 10 )

• valid

• invalid

declare int variables x and y. Initialize x to 9 and y to 89.

• int x ;

  int y ;

• int x ;

  int y ;

  x = 9 ;

  y = 89 ;

• int x = 9, y = 89 ;

• int x = 9 ;

  int y = 89 ;

Update the value of of an int variable x by adding 5 to it.

• x = x + 5 ;

• int x;

  int x = x + 5 ;

• int x;

  x = x + 5 ;

Swap the content of the integers variable x and y. (Declare additional variable if nessesary).

• int x, y ;

  x = 9 ;

  y = 9 ;

• int x , y , temp ;

  temp = x ;

  y = temp ;

• { 'x': x, 'y': y }