stringintern.java

JAVA编程思想源代码 值得一下 很难找的

package chapter8;

public class StringIntern {

	public static void main(String[] args) {

		String s3 = new String("abc");
		String s4 = s3.intern();
		String s1 = "abc";
		String s2 = s1.intern();
		boolean s = (s1 == s3);
		System.out.println("s3==s4" + (s3 == s4));
		System.out.println("s1==s3" + s);
		System.out.println("s1==s4"+(s1==s4));
		s = (s2 == s1);
		System.out.println("s1==s2" + s);
		System.out.println("s3 is equals to s1 is " + s1.equals(s3));
		System.out.println("s2 is equals to s1 is " + s1.equals(s2));
		
	
	}

}