public class Test { public void foo() { assert false; /* Line 5 */ assert false; /* Line 6 */ } public void bar() { while(true) { assert false; /* Line 12 */ } assert false; /* Line 14 */ } }
What causes compilation to fail?
What will be the output of the program?
try { Float f1 = new Float("3.0"); int x = f1.intValue(); byte b = f1.byteValue(); double d = f1.doubleValue(); System.out.println(x + b + d); } catch (NumberFormatException e) /* Line 9 */ { System.out.println("bad number"); /* Line 11 */ }
What is the output of this program?
class main_class { public static void main(String args[]) { int x = 9; if (x == 9) { int x = 8; System.out.println(x); } } }
class X2 { public X2 x; public static void main(String [] args) { X2 x2 = new X2(); /* Line 6 */ X2 x3 = new X2(); /* Line 7 */ x2.x = x3; x3.x = x2; x2 = new X2(); x3 = x2; /* Line 11 */ doComplexStuff(); } }
after line 11 runs, how many objects are eligible for garbage collection?
class string_demo { public static void main(String args[]) { String obj = "I" + "like" + "Java"; System.out.println(obj); } }
class Output { public static void main(String args[]) { char a[] = {'a', '5', 'A', ' '}; System.out.print(Character.isDigit(a[0]) + " "); System.out.print(Character.isWhitespace(a[3]) + " "); System.out.print(Character.isUpperCase(a[2])); } }
String s = "hello"; Object o = s; if( o.equals(s) ) { System.out.println("A"); } else { System.out.println("B"); } if( s.equals(o) ) { System.out.println("C"); } else { System.out.println("D"); }
class Output { public static void main(String args[]) { Integer i = new Integer(257); float x = i.floatValue(); System.out.print(x); } }
import java.net.*; class networking { public static void main(String[] args) throws UnknownHostException { InetAddress obj1 = InetAddress.getByName("techepi.com"); InetAddress obj2 = InetAddress.getByName("techepi.com"); boolean x = obj1.equals(obj2); System.out.print(x); } }
class A { int i; } class B extends A { int j; void display() { super.i = j + 1; System.out.println(j + " " + i); } } class inheritance { public static void main(String args[]) { B obj = new B(); obj.i=1; obj.j=2; obj.display(); } }
Which of the following statements is true?
class Output { public static void main(String args[]) { double x = 102; double y = 5; double z = Math.IEEEremainder(x, y); System.out.print(z);} } }
class Output { public static void main(String args[]) { double x = 102; double y = 5; double z = Math.IEEEremainder(x, y); System.out.print(z);} }
Which of these methods is used to get x coordinate of the mouse?
Which statement is true?
class string_class { public static void main(String args[]) { String obj = "I LIKE JAVA"; System.out.println(obj.length()); } }
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