public static void main(String[] args) {
Integer i1=new Integer(97);
Integer i2=new Integer(97);
System.out.println(i1==i2);//false
System.out.println(i1.equals(i2));//true
Integer i3=new Integer(197);
Integer i4=new Integer(197);
System.out.println(i3==i4);//false
System.out.println(i3.equals(i4));//true
Integer i5=127;
Integer i6=127;
System.out.println(i5==i6);//true,btye的数组范围-128-127
System.out.println(i5.equals(i6));//true
Integer i7=128;
Integer i8=128;
System.out.println(i7==i8);//true
System.out.println(i7.equals(i8));//true
}
}
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