Commit 9a1e4f5

committed

Create HashSetTest2.java

1 parent bed0f23 commit 9a1e4f5Copy full SHA for 9a1e4f5

File tree

+47

-0

lines changed

+47

-0

lines changed

Lines changed: 47 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,47 @@`
	`1`	`+//version 11.1`
	`2`	`+`
	`3`	`+import java.util.*;`
	`4`	`+`
	`5`	`+class Student`
	`6`	`+{`
	`7`	`+ int rollno,marks;`
	`8`	`+ char grade;`
	`9`	`+ String name;`
	`10`	`+ Student(int rollno,int marks,String name)`
	`11`	`+ {`
	`12`	`+ this.rollno=rollno;`
	`13`	`+ this.marks=marks;`
	`14`	`+ this.name=name;`
	`15`	`+ }`
	`16`	`+ public String toString()`
	`17`	`+ {`
	`18`	`+ return(rollno+" "+name+" "+marks);`
	`19`	`+ }`
	`20`	`+ public int hashCode()`
	`21`	`+ {`
	`22`	`+ return(rollno);`
	`23`	`+ }`
	`24`	`+ public boolean equals(Object ob)`
	`25`	`+ {`
	`26`	`+ Student st=(Student)ob;`
	`27`	`+ return(rollno == st.rollno && marks == st.marks);`
	`28`	`+ }`
	`29`	`+}`
	`30`	`+class HashSetTest2`
	`31`	`+{`
	`32`	`+ public static void main(String s[])`
	`33`	`+ {`
	`34`	`+ HashSet hs=new HashSet();`
	`35`	`+ hs.add(new Student(101,85,"abc"));`
	`36`	`+ hs.add(new Student(102,75,"xyz"));`
	`37`	`+ hs.add(new Student(103,65,"pqr"));`
	`38`	`+ hs.add(new Student(101,85,"hij"));`
	`39`	`+`
	`40`	`+ Iterator itr=hs.iterator();`
	`41`	`+ while(itr.hasNext())`
	`42`	`+ {`
	`43`	`+ System.out.println(itr.next());`
	`44`	`+ }`
	`45`	`+ }`
	`46`	`+}`
	`47`	`+`

Comments

(0)