java - The value of the local variable is not used -
all of variables above have warning in title. please tell me why happening?
public class datatypes { public static void main(string[] argv) { // new feature in jdk 7 int x = 0b1010; // 12 int y = 0b1010_1010; int ssn = 444_12_7691; long phone = 408_777_6666l; double num = 9_632_401_909.1_0_3; string twoline = "line one\nline two"; } }
the variables declared never used, assigned to, therefore you're being warned.
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