gs gs128 Java IO Applets - Writing Console Output in Java - Quiz No.1

 class output { public static void main(String args[]) { String a="hello i love java"; System.out.println(indexof('i')+" "+indexof('o')+" "+lastIndexof('i')+" "+lastIndexof('o') )); } }

 class output { public static void main(String args[]) { char c[]={'a','1','b',' ','A','0']; for (int i = 0; i < 5; ++i) { if(Character.isDigit(c[i])) System.out.println(c[i]" is a digit"); if(Character.isWhitespace(c[i])) System.out.println(c[i]" is a Whitespace character"); if(Character.isUpperCase(c[i])) System.out.println(c[i]" is an Upper case Letter"); if(Character.isUpperCase(c[i])) System.out.println(c[i]" is a lower case Letter"); i = i + 3; } } }

 class output { public static void main(String args[]) { StringBuffer s1 = new StringBuffer("Hello"); StringBuffer s2 = s1.reverse(); System.out.println(s2); } }