stringcompare.java

JAVA编程思想第四版英文原版习题答案. pdf原版的

// operators/StringCompare.java
// TIJ4 Chapter Operators, Exercise 14, page 133
/* Write a method that takes two String arguments uses all the boolean
* comparisons to compare the two Stings and print the results. For the == and
* !=, also perform the equals() test. In main(), test your method with some
* different String objects.
*/

import org.greggordon.tools.*;

public class StringCompare {	
	static void f(boolean b) {if(b == true) P.rintln(true);
		else P.rintln(false);}
	static void stringTest(String s, String t) {
		f(s == t);
		f(s.equals(t));
		f(t.equals(s));
		f(s != t);
		// f(!s);
		//f(!t);
		// s = s && t;
		// s = s || t;
		// s = ~t;
		// s = s  & t;
		// s = s | t;
		// s = s ^ t;
		// s &= t;
		// s ^= t;
		// s |= t;
	}	
	public static void main(String[] args) {
		String s = "one", t = "two";
		StringWork.stringTest(s, t);		
	}
}