String。equals()用法

package com.yiibai;

import java.lang.*;

public class StringDemo {

  public static void main(String[] args) {
  
    String str1 = "sachin tendulkar";
    String str2 = "amrood admin";
    String str3 = "amrood admin";

    // checking for equality
    boolean retval1 = str2.equals(str1);
    boolean retval2 = str2.equals(str3);

    // prints the return value
    System.out.println("str2 is equal to str1 = " + retval1);
    System.out.println("str2 is equal to str3 = " + retval2);        
 }
}