Computer Applications

Predict the output :

double n1 = Double.parseDouble("8.0"); 
double n2 = Double.parseDouble("2"); 
System.out.println(n1 + " " + n2);

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8.0 2.0

parseDouble() converts String arguments passed to it into double data type. Thus, 8.0 will be assigned to n1 and 2.0 will be assigned to n2.

The values of n1 and n2 will be printed with a space " " between them.

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Integer obj = new Integer("A"); 
System.out.println(obj);

double n2 = Double.parseDouble("2"); 
double n3 = Double.parseDouble("OCA"); 
System.out.println(n2 + " " + n3);

long a = 124235L; 
Long b = new Long(a);
long c = b.longValue(); 
System.out.println(c);

Integer c = 155; 
Integer d = 155;
System.out.println(c == d); 
System.out.println(c.equals(d));