Java String Class

Frequently, Java programs use group of characters called strings. A java string is a class, not a primitive data type. The java string is part of the java.lang library, which can be accessed in any java program. However String is a class, it begins with an UPPER CASE letter. Although all data types are with lower case letters. Declare variables: Int a,b,c; Float red=1.22; Int a=5, b=c, d=77; String sname; String nic 010-10125-5128; Boolean flag= true; Boolean choice true; Character grade-;’f’; One ‘f’ in quote is character, but more than one character in a quote is "String". e.g. ‘lkihjdw’; JAVA Contents: Static final double d1=3.14; Static final int fees = 500; JAVA type casting: Int a,b; Double c; C=a+b; The above syntax is wrong because data types are different. C=(double)a+ (double)b; The above statement is correct. We change the data type. Escape sequences: \n-------Line feed. \t--------tab ahead 6 to 8 character on a line. \r-------carriage or return (like Enter key). \b-------backspace. \f------- form feed (printer). \’--------single quote marks