Operators and Assignments Questions and Answers

What will be the output of the program? class SC2 {     public static void main(String [] args)     {         SC2 s = new SC2();         s.start();     }     void start()     {         int a = 3;         int b = 4;         System.out.print(" " + 7 + 2 + " ");         System.out.print(a + b);         System.out.print(" " + a + b + " ");         System.out.print(foo() + a + b + " ");         System.out.println(a + b + foo());     }     String foo()     {         return "foo";     } }

What will be the output of the program? class Test {     static int s;     public static void main(String [] args)     {         Test p = new Test();         p.start();         System.out.println(s);     }     void start()     {         int x = 7;         twice(x);         System.out.print(x + " ");     }     void twice(int x)     {         x = x*2;         s = x;     } }

What will be the output of the program? class Two {     byte x; } class PassO {     public static void main(String [] args)     {         PassO p = new PassO();         p.start();     }     void start()     {         Two t = new Two();         System.out.print(t.x + " ");         Two t2 = fix(t);         System.out.println(t.x + " " + t2.x);     }     Two fix(Two tt)     {         tt.x = 42;         return tt;     } }

What will be the output of the program? class BoolArray {     boolean [] b = new boolean[3];     int count = 0;     void set(boolean [] x, int i)     {         x[i] = true;         ++count;     }     public static void main(String [] args)     {         BoolArray ba = new BoolArray();         ba.set(ba.b, 0);         ba.set(ba.b, 2);         ba.test();     }     void test()     {         if ( b[0] && b[1] | b[2] )             count++;         if ( b[1] && b[(++count - 2)] )             count += 7;         System.out.println("count = " + count);     } }

What will be the output of the program? public class Test {     public static void leftshift(int i, int j)     {         i <<= j;     }     public static void main(String args[])     {         int i = 4, j = 2;         leftshift(i, j);         System.out.printIn(i);     } }

What is the output of int a = 5; a += 3 * 2;?

Which operator has the highest precedence?

What is the result of 10 / 3 in Java (integers)?

int x = 7; int y = ++x * 2; What is y?

What is the output of System.out.println(5 + 3 + "7");?