Identify all errors in the following class.

public class SampleClass ;

{

private String phoneNumber; // a ten-digit phone number (e.g. 1234567890)

private double batteryLife; // in the range between 0.0 and 1.0

(one error)

public SampleClass( )

{

phoneNumber = 123467890

batteryLife = 0.0

}

(two errors)

public void setPhoneNumber( String n )

{

if ( n.length = 10)

{

n = this.phoneNumber ;

}

}

(two errors)

public void getPhoneNumber( )

{

return this.phoneNumber;

}

(one error)

public boolean chargeComplete( double charge )

{

if ( charge = 1.0)

{

return true;

}

else

{

return false;

}

}

(one error)

}

Tracing code

In plain English (ONE SENTENCE), state what the following code fragment does.

public int sum ( int num ) { int total = 0; for (int n = 0; i < num ; n++) { total = total + n; } return total; }

What will be the output for the following code fragment?

Code fragment	Output
String zipcode = "01234"; String str = ""; int n = zipcode.length( ) - 1; while( n >= 0 ) { str = zipcode.charAt( n ) + str; n = n - 1; } System.out.println( str );

What will be the possible range of integers printed for each System.out.println statement below?

Statement	Possible range of integers
Random r = new Random ( );
System.out.println( r.nextInt( ) );
System.out.println( r.nextInt ( 2 ) + 1 );
System.out.println( r.nextInt ( 3 + 10 ) );
System.out.println( r.nextInt ( 6 ) + 1 );